Thứ Tư, 23 tháng 11, 2016

2.0 / 2.5 Roadster / Roadster Sport Tire Thread part 7

  • May 30, 2013
    Doug_G
    The Roadster is very sensitive to front tire balance. I get mine rebalanced annually because mere tire wear alters the balance enough that you get vibration.
  • May 30, 2013
    Pantera Dude
    Sounds good, thanks!

    - - - Updated - - -

    It seems that most of my tire squeal has disappeared probably due to the mold release agent wearing off?
  • Jun 14, 2013
    7racer
    Have had the MPSS installed for a couple weeks now and it's MUCH quieter than my bald stock tires!! Lol.

    I would just remind people to remember to set the VDS to learn "new tires".

    This was the first set that I had done and noticed the traction control going off and remembered about the setting. If you. Never have done it, it's pretty weird. It goes almost in to a coast mode with TC off.
  • Aug 15, 2013
    jaanton
    Tirerack is reporting AD08's in closeout. AD08 R is new. Anyone have any experience with this new tire?
  • Aug 15, 2013
    Doug_G
    Appears to be a new version of the AD08 with orange peels (I kid you not - the tires are partially made from oil extracted from orange peels). Probably a drop-in replacement, maybe even a little better.
  • Aug 15, 2013
    thefortunes
    and it's only $2 more than the closeout old version.
  • Nov 12, 2013
    Doug_G
    Has anyone tried 205/45/16 on the front? I was thinking of the next autocross season, and would really like to dial down the understeer a bit more. Toyo Proxes R1R is available in that size. It's spec'd for a rim 1/2 inch larger than the Roadster's front wheels, but could probably squeeze it on.

    Is the offset the same front/back? Has anyone tried putting 17" rims on the front?
  • Nov 12, 2013
    hcsharp
    I was a bit of a newbie with tire sizes at the time but I tried 205/50/16 and they interfered with the ground effects on a full turn of the wheel. I also found some 205/55/16 tires that did not hit the ground effects. What I learned was that not all tires with the same aspect ratio are the same. You need to measure or test them to find out for sure.
  • Nov 12, 2013
    smorgasbord
    Yeah, this recently happened to me. Fronts changed at 17.5K miles, out of balance by 24K miles (maybe sooner). Didn't have a problem with my original set of fronts, though.
  • Nov 23, 2013
    wiztecy
    Has anyone noticed a loss of range due to the larger foot-print up front?

    Any pics of the 205 mounted up front with the rears in the back? Curious on how the bulge looks around the rim and the look between the front/rears since the rears won't have the buldge.

    Also curious if anyone went wider than the stock 225's on the back and if that would offer any handling improvements.
  • Nov 24, 2013
    wiztecy
    No range loss for the 205 then I presume? Same with the 195's then.

    ======
    Updated
    ======
    Well, actually the width has a direct impact on range:


    Tyre geometry - Taking into account the tyre transversal section dimensions, some of them could affect significant the rolling resistance.
    Rim width - The major part of researchers agree that, in a particular case of a radial tyre, the minimum value of the rolling resistance is obtained for an optimum ratio between the width of the rim and the width of the tyre.
    Tyre exterior radius - It is known that a large tyre has lower rolling resistance than a small tyre. The explication consists in the fact that the exterior radius is in close connection with the tyre nominal load. Thus, a large tyre has higher stiffness and encounters lower deformations over the same vertical load.

    Source: Rolling resistance force


    So what's the real loss? I'm sure someone has gone up in size in the front, can they report the loss in range with 195's as well as 205's? Please note your brand/model of tire since tire compounds play a huge factor in resistance.

    The interesting part in real numbers here is that we're lighter up front so this may not be a huge issue for us. Can someone chime in?
  • Jan 13, 2014
    hrtchkr
    Had an interesting interaction with my local service center today. I recently purchased a 2010 2.0 Sport. Currently the car has the black forged wheels with four A048s on it. I also purchased a set of four standard wheels with AD07s on the front ones and Michelin Pilot Sport A/S Plus's on the rears. I called the service center to schedule an appointment to swap out the wheels and soften the suspension for winter driving as I'm not interested in being killled by the A048s on wet pavement or potholes. The service technician said he couldn't do that because the Michelins were not Roadster-approved tires. He said that they (the service techs) had recently been "told" that they were not allowed to work on any tires other than those sold at the service stations which, for winter driving means either Yokohamas or Hankooks. I explained that the tires are already mounted on the wheels and seem to be inflated (although unloaded who knows) and I only wanted to take the current wheels off and put the others on, but he said sorry but no dice -- they aren't allowed to work on any wheels with non-approved tires. Don't get me wrong. The guy was very nice and apologetic about it and understood my problem, but he just couldn't buck company policy. I get that it's preferred to have all four tires the same but I'm not doing any high-performance driving in the winter. I just want to be able to use the car when it's wet out.

    I checked through some tire ratings sites and the Michelins are supposed to be very good both dry and wet, and there is definitely a lot of tread left on both the Michelins and the AD07s. It seems a shame to waste good tires. I have no problem switching the tires out myself (and saving the $100 or so they would probably charge). And I guess afterward I'll take the car over for the suspension adjustment (assuming they'll agree to do it with the new tires), but I was very surprised that they would balk at installing wheels with highly rated tires that fit perfectly and are far safer in the rain than the slicks I'm currently running. Has anybody else run into this problem?
  • Jan 13, 2014
    Doug_G
    FYI the A048's aren't even rated to be STORED in freezing temperatures - it will ruin the rubber.

    This is the one and only area where Tesla service is unfortunately inferior to the "dealer model". I think this decision comes from their legal department; they are no doubt worried about legal liability. They'll only install tires that their engineering department has validated and approved.

    Fortunately tires can be easily handled by any competent shop. Since they're on rims you can easily swap them yourself, although you will have to get Tesla to reset the TPMS sensors. (Or you can ignore the TPMS warnings.) Just get a good low profile shop jack and a torque wrench.
  • Jan 14, 2014
    hrtchkr
    Thanks Doug. will do.
  • Jan 14, 2014
    hcsharp
    The same is true of the AD07's, but not quite as bad. They cannot be stored below 14 deg F (-10C) for even a short time before it ruins the rubber. I recently bought a set of them from Tire Rack when they were on sale but waited until a stretch of warm weather was forecast between here and their warehouse before placing the order.
  • Jan 14, 2014
    Doug_G
    Fortunately my garage is insulated and doesn't get quite that cold. I need to have wheels on the car...
  • Feb 8, 2014
    hrtchkr

    Just to close the loop on my previous post about switching out the wheels on my roadster.

    So before I even jacked the car up, I tried loosening the lug bolts. Despite using a standard cross wrench and a pipe as an extender, on the driver�s side I was only able to get 4 lug bolts off. On the other side only two bolts loosened. I was puzzled, since they were only supposed to be tightened to 77 foot-pounds and I was sure I was generating much more torque than that with the wrench/pipe combo. I put the bolts back on and decided to take it to a local tire shop where they could break out the power tools. Finding a shop that was willing to jack or lift the car correctly was a little bit of a challenge but eventually I was able to take it to a small local shop I had used before to find specialty tires for one of my other cars. The guy there put the star tool into his impact driver and tried to loosen one of the lugs. Lots of loud noise but it didn�t budge. He tried another bolt but no dice. Now I was really confused (and a little concerned). I thought maybe the bolts turn in the opposite direction (like the ones on my 1963 Checker) but then I remembered that I actually had been able to loosen 6 already. The mechanic said his impact wrench was generating something north of 900 foot-pounds so obviously someone had WAY over-torqued the bolts when they put the A048s on. I asked him to try once more and he did but instead of the bolt loosening, the star tool started to back out. When we looked at it the metal tool was partially twisted. That�s when he said he wouldn�t touch the car again as he was afraid he�d break the tool or worse, the bolt.

    Now I was worried. This guy wouldn�t (and I couldn�t) get these bolts off, and Tesla wouldn�t swap the wheels since the winter tires on them aren�t approved by the company. This is where the folks at the Westchester service center really came through. I called them up and asked what I should do. They still couldn�t install the other wheels but offered to loosen all my lugs and then retighten them to the correct torque so I could do the job myself. I drove over there and, of course, they couldn�t get the lugs off and the star tool was getting more twisted. One of the guys said he knew �some tricks� to loosen stuck lugs but now the tool was too bent to be usable. The nearest replacement tool was in Queens but this was Saturday so I would have to bring the car back on Tuesday to give them time to pick up the tool. Of course it snowed on Monday so I had to wait until Wednesday before I felt it was safe to drive over there on the A048s, which I did. The guy who knew the �tricks� wasn�t coming in until later so I left the car and took a rental to get to work, but I got the call at the end of the day that the job was done. I went over to pick up the car and not only had they loosened the bolts but they had washed the car and replaced the windshield wiper. And even though it took them more than 3 hours they only charged me for the wiper and new star tool � labor gratis! I asked the guy how he did it and he said something like �You don�t want to know� and I didn�t push it. He did say that it might be a good idea to get a whole new set of lug bolts as these had been severely stressed.

    I brought the car home and put the new star tool in my wheel wrench and wouldn�t you know the first bolt wouldn�t budge! I leaned on it � hard. The star tool actually started to twist again. After I finished cursing, I brought out the 2x4 and hammer and finally got it loose. Fortunately the other bolts came off relatively easily. I swapped the wheels and put the bolts back on with my torque wrench. To me, 77 foot-pounds didn�t seem like much compared to the force I needed to remove the bolts, but I stuck with the recommended torque. One thing I have noticed is that the all-season tires make for a much smoother ride.

    IMG_0349.jpg (Just a standard lug wrench and my muscular arms did this.)

    Random thoughts: Why did the previous owner over-torque the bolts? Maybe he did a lot of auto cross and was afraid of the wheels coming off. I don�t know, but I now understand why the performance tires were still on the car when I took delivery in November. I�m going to need another star tool and I think I will replace all the lugs after all. The folks at the service center were outstanding and live up to the reputation that Tesla service has developed. But I really think that Tesla should make the tool out of hardened steel instead of what appears to be forged aluminum. Anyway I thought I�d post this at least for the amusement value. Anybody have similar experiences.
  • Feb 9, 2014
    Doug_G
    Sounds like the bolts were torqued to yield. Whoever did that is an idiot.
  • Feb 9, 2014
    hcsharp
    I'm surprised your bolts didn't break. It was probably corrosion that froze them. If salt gets in the threads, which it does pretty easily around here, and then sits for a year you can have experiences like this. My son broke two lug bolts on his Subaru last fall after heavy use in the winter and then over a year before removing them. They were never over-torqued. The star tool is not forged aluminum and is probably designed to bend before the bolts break.

    Incidentally, it's a good idea to check your bolts to make sure they're tight a couple days after any tire work. They came loose on one of my wheels and I know they were properly torqued a few days earlier. It's a common problem with alloy wheels. Many garages now will make you sign a form that says you will return after 1-3 days to re-check the torque or they won't be responsible for what happens.
  • Feb 10, 2014
    jeremyz
    That's a good point about galvanic corrosion. Something like liquid wrench penetrating oil is good at dissolving the rust that forms. You just spray it on and let it sit for a few hours and generally the bolts come right off.
  • Feb 10, 2014
    hrtchkr
    What you said makes sense, Henry. And yeah, I always re-torque my bolts a day or two later.
  • Mar 6, 2014
    mg012
    Just wanted to mention that I put those Michelin's on the rear of my 2010 2.0 Sport and really like them. Someone previously had suggested 45lbs pressure (Tesla recommends 40 for the Yokohamas), so you might try some different pressures depending on your suspension settings.
  • Mar 6, 2014
    wycolo
    Anti-Seize the treads but NOT the taper. Just a thin partial coating - a little goes a long way. Some really dry threads need a bit more. Then you can torque a bit less. Do the 50 mile re-torque. Been doing this for 34 years, never a problem of loosening (on 12 ton diesels do a re-torque every week at least*).

    * full disclosure caveat.
    --
  • Mar 14, 2014
    Tesla 940
    What is the latest thoughts on Michelin tires??? Soon I will need to replace the rear tires (front tires are the original Yoko's) I'm thinking of either the Pilot Sport A/S 3 or the Pilot Super Sport tires. I only drive the car in nice weather so the "all season" doesn't seem to be any advantage. The only difference appears to be the wear rating 500 versus 300. I currently have the Proxes 4 and will get about 12k before they hit the wear bars. All thoughts or comments are appreciated.
  • Mar 14, 2014
    hcsharp
    The Pilot Super Sports perform better than the Pilot Sport A/S. Better acceleration and handling. Not sure about in the rain. I don't know about the A/S range but the Super Sports have low rolling resistance and get excellent range. They are slightly lighter than the stock Yoko's as well.
  • Mar 14, 2014
    strider
    I got 15k out of my Proxes 4's (not the 4+) and got 10k out of my last set of Pilot SS's. Both were driven to bald but no cords showing. So while they handle really well they do wear fast. Michelin will give you a 15k warranty so you'll get a discount on your next set. I might try the Dunlops next.
  • Mar 14, 2014
    Doug_G
    I had Pilot Super Sports on my G37. Excellent tires in the rain; in fact some racers use them as their rain tires.
  • May 21, 2014
    jbadger
    I just had R888s installed and while I was going from bald AD07 rears to brand new tires, the difference is amazing. The new tires seem grippier than I ever remember and acceleration feels faster as well. At $250 vs $400 installed, they seem to be a better deal.

    I have 54k miles right now so i'm curious to see how long these last. My read AD07 only lasted 8k miles.
  • May 22, 2014
    wiztecy
    The R888's have a 100 tread wear rating, the AD07 have a 180 tread wear rating.

    From the tire rack (Uniform Tire Quality Grade (UTQG) Rating), a grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long. So if you're AD07 tires lasted 8k, your R888's are estimated to last around 4.5k to 5.5k. They're a little better than the Yoko A048 tires which have an 80 tread wear, and those are known to be eaten up fast by the Roadster.

    I'm on 17,800 miles so far on my rear Yoko AD08 tires and still going and should make it to 19k. I have a new set of rear AD08 tires which I paid $168 each @ the Tire Rack waiting to be thrown on when the time comes. I don't think there's a better tire than the AD08 for the cost, traction and life. I'm really looking forward and crossing my fingers whenever the front AD08's into stock at the TireRack. My last set of rears which were AD07's lasted 12,500 miles.

    Just be careful of the R888's in the rain where it puddles, they'll hydroplane fast since there's no rain channel design built into those tires.

    I wasn't sold on the R888 after spending some time researching how they work on both the street and the track. They need to be heated up and driven for a long time before they really begin working, and typical street driving won't bring them up to temp. They're softer and will cost more in the long run. They don't offer safety for an all season California weather tire due to lack of rain grooves. If I was racing on a track where rain wouldn't puddle on the track, I'd say yes. But my own and other's personal safety on the street where I'm running them in the rain, no. Even the A048 tires suck in the Rain for the same reason, no where for the water to channel away so the tire rides up on it and planes (hydro-planes).
  • May 22, 2014
    Doug_G
    A048's are "cheater" tires, with just barely enough tread grooves to be considered street legal. They're more like slicks, and there isn't really enough tread grooves to channel away the water. The R888's are the same.

    In theory they shouldn't last as long due to the lower treadwear rating; however, there are no standards for measuring treadwear and the number will vary in meaning between manufacturers.
  • May 22, 2014
    jbadger
    It's a bummer to find this out now. I didn't have time to read through this entire thread and didn't research the tires myself but went purely based off what I was recommended by Rob.
  • May 22, 2014
    wiztecy
    I remember talking to Rob about the R888 and the Dunlop Direzza. I think Rob was passing on what the Lotus Elise drivers are using and trying to find the Roadsters another alternative tire that works. On the Lotus fourms there's mixed reviews of the R888. Some who love them, say they're lasting longer than the Yokos and others who don't and get low tread life.

    I really do like the Dunlop Dirzza ZII, nice tread pattern, wear rating, and two channels down the middle for water channeling. They come in the Roadster's rear size but nothing for the fronts. Closest I see is only a 205 for the front unfortunately. And that seems like most cases for all the Dunlop summer high performance line of tires.

    http://www.tirerack.com/tires/tires.jsp?tireMake=Dunlop&tireModel=Direzza+ZII&partnum=86HR4Z2

    du_direzza_zii_ci2_l.jpg
  • May 22, 2014
    hcsharp
    I wouldn't worry about it. Based on other reports, the R888 on the rear performs very well. Most people don't have problems in the rain until they get pretty worn. A friend of mine ran the R888 for a season and said they lasted longer than the AD07. The treadware rating is not consistent from one manufacturer to another.
  • May 22, 2014
    wiztecy
    On the back tires of the Roadster you have more grace period before it washes out on you due to planting of the battery weight back there. Front not at all and you might as well be on sneakers running across an icy pond where anything goes and when it does it gets ugly fast. When I do run my AD0x tires down on the rears down where they're flat in the middle (no rain grooves) with groves on the sides, I drive with a VERY conscious mind where I slowly learn and know the Roadster's limit in that state. I don't *ever* try to go into a corner with any type of speed for that a water stream across the road can spell disaster. I posted videos I believe in the 1.5 tire thread showing the R888 in rain where the track was puddled, the results are not good. Typically they're cut down and the video the tread was half. Uncontrolled spin-outs and unintentional drifts. When I see that and the tread design that tire is a pass for me. Also people write in forums about that behavior of the tire so its not just a few people, its a rather good sample. There is an up and down thing where some people love them and others say they're dangerous. My point is you can't just throw R888's on the Roadster and expect them to hookup in 3 seasons (4 in california) like the Yoko's AD0x's can on the street. They weren't designed for that. The AD0x's were hence why I've been pushing to get AD08's in the Roadster's front stock tire size.

    As for the tread wear rating, I agree there's something odd about it and the metrics. I can't see how I can get 12,500 miles out of a rear AD07 with a 180 tread wear rating. And 19,000+ out of an AD08 rear tire with the identical rating. The compound has changed and obviously the wear limits. My driving style has not. My alignment has which I'm sure I had a way too aggressive negative camber set in the rear from the factory due to the inside tire wear. I now have a nice even wear even at -2.0 camber in the rear. But with that said that's not enough to gobble up 7k miles.

    But with physics and chemistry in mind the truth is any tire that is softer will wear faster. Harder will last longer. I have commercial truck tires on my truck, steel belted side walls to handle extreme weight as well as the rims. The tire is very hard and will last 100k +. If I put soft mudders on (which my jeep has), good luck getting 20-30k. Hence the harder/softer comparison. The R888 is a track tire that successfully made by a slim margin the DOT certification of a summer extreme performance street tire. Again stressing summertime. I think in hot 90+ degree Cali weather you can get the tire up to temp on a long drive or corners on sunny stretch of tarmac. I'd be cautious in 75 or below degree weather for that I don't think there's enough heat to make them stick properly and that's where people who review them say they like them when their hot but there's too much of a fluctuation with them. Also I heard they stick good for the first couple thousand miles but after that they don't hook up.

    New tires are always good to test out and review. Also with the oddity in the tread wear rating, I could see them going further than what a mathematical comparison of tire wear can do. But getting back, if its a softer tire it will wear faster. And a track tire is typically softer than a street tire. With any new tire, a driver needs to understand their design, strengths, faults and forgiveness in different temps and conditions to fully utilize them in a safe manner on the street.
  • May 22, 2014
    wiztecy
    The Toyo R1R has a more street-able (in the rain) tread design and a 140 tread wear rating. Again no stock "175" sizes for the front of the Roadster but 225's are available for the rears. However, with the 2.x Roadsters you have tire learning so if it was me I'd go to 235's on the rears and 205's on the fronts on the 2.x:

    http://www.tirerack.com/tires/tires.jsp?tireMake=Toyo&tireModel=Proxes+R1R&sidewall=Blackwall&partnum=245WR7PR1R&tab=Sizes

    Review of them on a Lotus Elise:
    Toyo R1R first impression - LotusTalk - The Lotus Cars Community

    ProxesR1R.jpg
  • Jun 20, 2014
    bart513
    I just had my winter tires/wheels taken off and my regular tires/wheels put on at a local place. The VDS says to reset the TPMS. Does a SC have to do that or can the local place do that? The car obviously did not remember the tires/wheels from when they were on earlier in the year....
  • Jun 20, 2014
    Doug_G
    SC has to do it. (Tesla used to sell the tool, but it was a bit pricey.)
  • Jun 20, 2014
    bart513
    Uggh ok thx Doug. The piece was about $800 I think
  • Jun 20, 2014
    strider
    Don't know how I missed this but thanks! I was nervous about going w/ different sizes but from the thread it looks like 205/45-16's in the front will work. I figure I'll stick w/ the stock rear size. Looks like the lowest TPMS threshold is 25/36 which is higher than what the Lotus folks were recommending but can give it a go and see what happens. Won't need tires until the winter but I feel like I have a plan now.
  • Jun 20, 2014
    wiztecy
    I'd really go with the 235's in the rear, I have the find the thread on the Lotus where that works out in the same ratio aspect of the stock front/back tire sizes. Also going wider in the rear will give you more grip up front. If you have too much you can dial out the negative camber up there to help balance it out. Lastly the wider tires will look right, and would possibly look a little silly if you looked close. Front tire will be a little wider than the rim where the rear would be flush with the 225's back there. This would be the way I'd personally go if I had tire learning, so with the 1.5, I'm out of this option's possibility due to the change in revs.
  • Jun 20, 2014
    strider
    But I should go down in aspect ratio to keep the tire roughly the same height?

    Based on the Lotus forum comments on the tires being "squishy" I'm leaning towards the shorter sidewall but welcome comments. The 205/45-16 Front is 5mm shorter than stock, 205/50-16 is 5mm taller than stock. For the rear looks like 235/40 is 7mm shorter than stock and 235/45 is 4mm taller than stock.
  • Jun 28, 2014
    smorgasbord
    From information wiztecy provided

    Here's a summary of AD08 front sizes:





















    Size RPM Diff
    175/55 - 16 AD07 882 0 (Stock)
    205/45 - 16 AD08 899 17
    205/50 - 16 AD08 835 47
    205/55 - 16 AD08 859 23

    So, for those of us with V2 and V2.5 Roadsters that have Tire Learning, can we use the 205/45 size (only 17 off)? Would there be any issues with clearance or minimum rim width? If we have AD08Rs on the rears, would that be the best choice, even compared to the AD07 stock size?


    BTW, I couldn't find the AD08Rs in the 205/45-16 size in the US - only in the UK.
  • Jun 28, 2014
    smorgasbord
    Went hunting for 205/45-16s and came across these Hoosiers at TireRack.

    What does "Wet Racetrack & Autocross Only" really mean, and if these tires are DOT approved, why not run them on the street? Can they be any more dangerous than Yoko 048s?

    BTW, in this size the minimum rim width is 7" and I believe the Tesla stock rims are only 6" across - so not suitable anyway.
  • Jun 30, 2014
    strider
    Ok, so here's my thinking. For the front R1R in 205/45-16 size Toyo states a 6.5"-7.5" rim width and IIRC the Roadster is 6" so that's a no-go. So that would mean 205/50-16 (5.5"-7.5" rim width) which has an 856RPM and 102.5mm sidewall height.

    For the rear R1R in 235/40-17 size Toyo states an 8"-9.4" rim width and IIRC the Roadster is 7.5" so that's a no-go. So that would mean the 235/45-17 (7.5"-9" rim width) which has an 820RPM and 106mm sidewall height.

    This would mean taller tires front and rear which will hurt acceleration but in theory give better mileage (using my now-outdated ICE reasoning so could be wrong but as I understand it our motors are more efficient at lower RPMs so I believe I am correct). Do we know if tire learning also recalcs the speedo? With taller tires the speedo would then read low which is bad when facing the fuzz.
  • Jul 21, 2014
    ibcs
    I've read through the last 10 pages of this thread. My take away is that Telsa only puts on the Yokohoma AD07 tires for the rear.

    Comparing to the Michelin Super Sport

    AD07 - Weight - 25 lbs versus 22 lbs for the Michelin
    AD07 - RPM - 835 versus 833
    AD07 - Tread life - 80 versus 300
    AD07 - $372 from Tesla - Michelin - $148

    Currently my Tire sensor does not work properly, so that is not an issue.

    I already have winter tires, so why would I not choose the Michelin instead of the AD07 for the rear tires.

    Thanks for any input. This is my first set of rear tires since purchasing the roadster last November.
  • Jul 21, 2014
    thefortunes
    I have gone through AD08's and Michelin Super Sports on my Roadster. My $0.02:


    The AD08's seemed significantly grippier, but the Super Sports seemed much quieter. In addition, the SS's have a treadwear warranty, so i got a 2nd set for a significantly reduced (prorated) price.

    If I were to only want performance, I would go with the AD08's. For a little more comfort and a quieter ride (as well as a lower cost) I will probably go with SS's again in a few thousand miles.
  • Jul 21, 2014
    strider
    I agree. The AD07/AD08 do have more grip but the MPSS's last longer and still have plenty of grip for my use as a daily driver. And as thefortunes mentioned they have a 15k mile warranty. I'm on my second set of MPSS's and am happy w/ them.
  • Jul 22, 2014
    ibcs
    Thank you for reply. I think the SS's will be perfect for me. Since I don't have the adjustable suspension I'll take a little more comfort and quieter ride as my primary reasons. Obviously, I don't mind saving some money too.
  • Jul 22, 2014
    AltPowr
  • Aug 3, 2014
    Perrin21
    what tyres do you use on your roadster?

    So I'm thinking of changing the stock AD07 tyres on my roadster 16/17in. I am wondering what tyres others are using and what sizes? Also has anyone tried using a sticky tyre on the front and a less sticky on the rear to reduce the understeer?
  • Aug 4, 2014
    Doug_G
    I think mixing tires front/back is the wrong way to deal with the understeer. Better to improve the grip on the front than reduce it on the back. I've changed the camber shims on the front. Adding a degree of negative camber has really helped a lot.
  • Nov 23, 2014
    dsm363
  • Nov 23, 2014
    hcsharp
    Not sure I believe it. They're showing the weight to be 33 lbs which is almost double the AD07. I know that Yokohama makes the AD08 in that size because I've seen it listed for sale in other countries, but never in the US (until this).
  • Nov 23, 2014
    dsm363
    I'm doubtful as well but figured I'd ask them. Still don't see why Yoko just doesn't sell them in US since they came out 5 years ago.
  • Nov 30, 2014
    dsm363
    I confirmed it with the sales person. They do have the AD08s in the proper tire size for the Roadster front rims (175/55R16 W) and have them in stock. I'm not ready for new fronts yet so don't want them sitting in my garage forever. I asked how they got them since no one else seems to be able to get them in the US but he didn't reply to that part of the e-mail. They seem legit but you never know.
    http://www.carid.com/yokohama-tires/advan-neova-ad08-1226116.html
  • Dec 1, 2014
    supersnoop
    What's the difference between AD07's and AD08's? I'm finding more and more AD07's in stock at reasonable prices these days.
  • Dec 1, 2014
    Doug_G
    They're pretty comparable - AD08 is the new version. The AD08 might wear a little better, but that is highly subjective.
  • Dec 4, 2014
    strider
    Hey jbadger, how have the R888's been handling the recent rainy weather?
  • Dec 4, 2014
    wiztecy
    Here's one user's experience running them on a 1.5 (from 1.5 tire thread) in the rain:

    -------------
    It started raining around here and my 1.5 is unhappy on the freeway.

    Currently running Toyo Proxy R888 tires all round - 195 on the front with 4/32 tread left and 225 on the rear with 3/32 tread left.

    The R888 tires have much better grip in the wet at lowish speeds compared to the factory tires but give up at freeway speeds. Car was unhappy doing 65 in the rain. When new I have had the R888s aquaplane once.

    I have a second set of rims and a pair of AD07 175 tires with about a month of driving on them.

    Thinking I should put the AD07 tires on the front for the rainy months.

    Looking for advice for the rear.
    -------------

    Granted in this example they're worn down pretty well, but with my Yoko's I never felt uncomfortable in the rain when the tread was low.

    As for the AD07 vs. AD08, the AD08 appears to be stickier since Yoko said it shaved .587 seconds on their lap times. Would like to see more data on this. I've personally found the 8's to last longer than the rear 7's. I'm curious about these fronts, price is insane but if they're shipping them from overseas in small batches then that makes sense. I don't think they're DOT certified in the front Roadster tire size. That's something to ask them.

    From Yokohama's website (ADVAN Sport Performance Tires | Yokohama Tire Corp.
    +++++++++

    Every bit as sensational as the legendary Neova AD07, but now even faster, even more agile and even more responsive.

    Fast Just Got Faster. Introducing the ADVAN Neova AD08�built for speed from the inside out to outperform its legendary predecessor, the ADVAN Neova AD07, known since 2006 as the "fastest street tire in the world." The Neova AD08's lap times average .587 seconds faster than the Neova AD07 and features superior advancements in four areas: dry grip, wet grip, ride comfort and noise level.

    Contact Patch and Compound
    "Micro Silica Compound with Hyper Density Carbon." Yep, it's a tongue twister. But, this revolutionary compound provides unprecedented grip on wet and dry roads. The ADVAN Neova AD08's Optimized Contact Patch puts ultimate control in your hands.

    +++++++++
  • Dec 4, 2014
    Timothy
    I think I just lost a post. This may be a duplicate.

    Are AD08s still available? I called the Tire Rack and was told they were replaced by AD08Rs.

    I had AD07s and two sets of AD08s for my rear tires and got 6000 miles on each set. My last set was AD08Rs and I only got 4000 miles. No difference in handling I could tell. I thought they all performed great--really didn't perceive any difference between them.
  • Dec 4, 2014
    wiztecy
    I got 12.5k out of my AD07 rears and 15.5k out of my AD08's. I'm a very aggressive driver, corner hard, brake hard, regen hard and accelerate fast. Thing is at the red lights I don't punch it, I allow the wheels to get rolling then punch it. From what I believe that's where much of the wheel spin / friction wear comes from where the TC is trying to negotiate with the wheel spin. One thing to note, these tires get VERY sticky when the temp rises, say 85+ degrees. With that they'll wear down quicker.

    The AD08R is the newer compound. They said the R compound (orange oil based) has better traction than the previous AD08 tire. I'll see how many miles I'll get out of the R series since that's what I'm running now on the back:

    The NEW ADVAN Neova AD08R Orange Oil rubber compound tyre is here | News Blog
  • Dec 4, 2014
    Doug_G
    These are essentially slicks with just enough grooves to make them DOT legal.

    toyo_proxes_r888_ci2_l.jpg

    The reason they don't work well in the rain is that they can't evacuate the water efficiently, and so they hydroplane in the deeper puddles.

    I've got the A048's on my Roadster right now and they're basically the same. You have to be careful driving them in the rain. They're meant to be high performance dry pavement tires; they have some ability to be driven in the rain, but they're not exactly great at it.
  • Dec 5, 2014
    Timothy
    Rain? Hey, could you send some this way? 80 degrees and sunny here at Thanksgiving. For dinner we put our dining table on the patio looking at the ocean. Nice. But at night it was so warm we left our bedroom windows open --and the sound of the surf kept me awake at night! :)

    When I bought the car I was told it was required to put the petal to the metal at all stoplights. Even doing that, I never have been able to make the wheels spin. I like to aim for 0.70G on the VDS--but only occasionally make that. Anyhow, it is sure fun to leave Corvettes, Ferraris, Porsches, etc. at the light and be gone with no noise at all! I'll take fewer miles on a set of tires for the fun of that!
  • Apr 14, 2015
    Tesla 940
    Time for new tires - front & rear, and need to hear from the "experts" before I purchase. I have a 2.0 Roadster which is a "play car" which means no rain. I also JUST finished taking the Fast Lane two day high performance driving class - so I would like to do some more track racing (Willow Springs, Buttonwillow). I'm was thinking MPSS 195/45/16 front, 225/45/17 back. The questions I have (reading the last 8 pages of comments) is should I go with 235's in the back? If so, what ratio (45/40/??), what other tire should I consider, what about wheel alignment spec's?

    Any and all comments and suggestions are welcome.

    Thanks
  • May 1, 2015
    adiggs
    I too have arrived at time for new tires for my 2.5 Sport. I've been using the Yoko 07s in front / 08r's in back, but since its front and back change time, I'm thinking now is the time to shift to something completely new. I've also been thinking about the Pilot Super Sports, but nailing down the specific tire dimension for the front wheels has been tough for me (I've spent some time looking forward and backward in the thread - I know its in here somewhere, but I'm not yet finding it).

    Anybody running MPSS front and back that can help me be sure and get it right? At least Tire Rack's "tires for your car" app says you can't get there from here (no Michelin tires for the Roadster).

    My needs are decidedly less performance oriented, though I do aspire to a performance driving school at some point. This is the daily driver and will continue being driven through the winter where it'll need to deal with rain (the Yokos have been excellent for me through the Portland winters) - but no need to worry about snow.

    Edit:
    More reading, and now its looking like folks are doing AD07's in the front and MPSS in the rear. Am I understanding that correctly? I'm wanting to try something with better wear on the rears than the 08's - I've been happy with them, but changing tires every 6-9k miles - I'd like something cheaper, and from what I've read, the MPSS looks like a little better mileage and a little less expense for those rear tires I've been eating like candy :)
  • May 1, 2015
    thefortunes
    I'm on my 3rd set of MPSS on the rear. Last set lasted 12k miles. Most (>85%) of my miles are highway.

    I still have the original AD07s on the front (~32k miles on them). I plan to replace them next time I replace rears.
  • May 1, 2015
    hcsharp
    I've gone through 3 sets of MPSS on the rear with AD07s on the front. Be sure to have all the paperwork validated for the warranty when you get them installed. The MPSS have a treadware guarantee of 15k miles. My first set was replaced by Michelin for almost nothing. The two sets combined lasted for about 18k miles.

    I was recently at a car event with several Lotus Elise owners. Most of them had AD07s in front and various things in back, mostly AD08r. I asked a few of them what other choices we had for the front. The general consensus was that everything but the AD07 involved compromises. Some people have tried different rim sizes with limited success.
  • May 1, 2015
    thefortunes
    Great point (that I forgot about). My first set of MPSS lasted about 8k miles and was also replaced under warranty at a large discount.
  • May 1, 2015
    adiggs
    And to be clear - the front replacement will be a new set of AD07's, correct? I'm at 30k total miles and I believe the fronts are the originals - maybe this isn't the round when the fronts get changed, what with the summer coming on and all.

    18k miles for approximately the price of 1 pair of tires sounds like heaven :) Even more miles than that sounds nearly unbelievable. And new pads and rotors coming soon too - it's like its gonna be a new car.
  • May 21, 2015
    GVTesla
    Strider, have you chosen the Toyo R1R, last time you changed tires?
    I'm seriously considering 195's in front and 225's back. Several Lotus drivers are very fond of them, particularly because they handle like the AD07's in dry but have much better grip when wet. As an added bonus I hope the 195's in front will reduce the understeer. So, in short, I'm very much looking forward to some real-life experience with those on a RS :) Thx!
  • May 30, 2015
    Vip
    I needed to replace my rear tires that came with the car when I got it last year. I was going to go with the Yokohama AD07 from Tire rack but after reading through the thread I ended up getting the Michelin Super Sport from a local tire store. It was only $135 per tire.
    It has great grip and I can feel the road much better. Plus it is amazingly quite compared to the Toyo Proxes that were on there.
  • Jun 5, 2015
    NomoC8
    I replaced my rear OE Yoko's at 16k miles. I got the MSS which now have 9k miles and only 1/32" left. The fronts are still at 4/32". I ordered another pair of MSS for (as others have said) next to nothing. I noticed on Tire Racks website the Yoko's 07's are on sale. $508.38 FOR ALL FOUR!!!!:-o Incredible price. I ordered a set of those too.
  • Jun 6, 2015
    hcsharp
    How on Earth did you get 16k miles on your rear OEM Yoko 07s? I think I got, like, 4k on my first set.

    When ordering the Yoko's now, are you concerned with storage issues? I've had tires dry out when sitting in storage for too long. Maybe the MPSS will not last long so the Yokos won't be stored for more than about a year?
  • Jul 12, 2015
    skadax
    Looks like tirerack has the fronts AD07 on closeout pricing for $100 a tire! Cheapest I've seen. Search by size 175-55-16 and you will see 2 listings for the yoko ad07. I believe they are the exact same tire, the OEM Lotus one is at 108 a tire and the other listing shows at 100 each.
  • Sep 18, 2015
    Dean412
    Any information on the 3.0 upgrade as far as the specific replacement tires?
    I am in the same situation as zgames on bald right rear tire, both rear tires needing replacement along with front tires on 2010 Roadster 2.5.
    I live south of Houston, normally averaging 80 - 98 degree +.
    This will be my third set of rear tires including the original set, Roadster now has just over 20K miles total.
    I have paid $750. per set through Tesla twice, but will have Discount Tires replace them this time around.
    Planning on replacing the rear tires with the Yokohama ADVAN Neova AD08, 225/45 R17 91W SL BSW at $225. EA., which should give a quieter ride, with the same tire ratings as originals.
    Front tires will be Yokohama ADVAN Neova Ado7 LTS,175/55 R16 80W SL BSW , $239 EA. same as the originals.
    Many of the tire replacement threads I've read suggest Michelin Super Sports on the rear and Yoko ADVAN AD07 on the front.
    Will that have any negative effects on the Roadster or its tire pressure monitor system with the Michelin SS on rear.
    Anyone have any suggestions based on experience, before I make the purchase?
    Thanks,
    Dean412?


    Last edited by Dean412; Today at 03:37 PM.?
  • Sep 18, 2015
    Tesla 940
    I have the original Yoko tires on the front and recently replaced my rears with MPSS. No issues. I've used this set-up at the track several times, no prior experience so I don't know if this set-up is better or worse than Yoko's on all 4's. I have 22K on the car.
  • Sep 18, 2015
    slcasner
    My car is a 1.5 with its second set of AD08s on the rear after the original AD07s. On the front, replaced the original AD07s with new ones in conjunction with the second set of AD08s on the rear. I've crossed 40K now, and it is close to time for new rears again. I'd like to know about the 3.0 tire plans.
  • Sep 18, 2015
    Stefan T
    If you take a look on the EU tire label For AD08

    1-F-B-75-3.png

    And insted take a look on Pirelli Cinturato P7 Blue

    1-A-A-71-2.png

    or Dunlop Sport BluResponse

    1-B-A-69-1.png

    The diffrence in roll restance much lower on them and sound is lower to
    Some of the ides to change tires for 3,0 update
  • Sep 19, 2015
    hcsharp
    Interesting. I always thought the AD07 and AD08 were low rolling resistance tires. I must have had wrong info. The Michelin Pilot Super Sport is LRR. Where can we find these EU tire labels online?
  • Sep 19, 2015
    ecarfan
  • Sep 19, 2015
    wiztecy
    Possibly its the LTS version of the Yokos that's low rolling resistance but haven't found any good info to back that up. Searches on the tire do come up with hits stating what you originally claimed and were discussed as that in earlier Roadster threads.

    The LTS AD07's come out actually come out to be a G in the rolling resistance which I believe is the worse:

    Tireset Yokohama Advan Neova AD07 LTS
    Lotus - Yokohama AD07 Tyres LTS

    2x Front tires in size: 175/55R16 80W
    Rolling resistance: G, Wet grip: B, Noise emission: 71 dB (three beam)

    http://moto-concept.de/en/tyres-yokohama-advan-neova-ad07-front-axle2

    I found a link where they were pushing the "green" orange oil tire as good for the environment and it was for their AVID Ascend as well as other "related low rolling resistance" tires. I see nothing mentioned about the Neova that backs it up or classifies it as a low RR tire. And the orange oil didn't make it into the Neova line until the AD08R's.

    Low Rolling Resistance Tire Primer - HybridCars.com
  • Sep 19, 2015
    Stefan T
    I found them on http://www.dackonline.se/

    But side is on swedish
    There is one english version for england on but don't rember the name
    The comapy is german that sells tyres on line to hole EU

    - - - Updated - - -

    I have 195/50 16 Dunlop Sport BluResponse on front and on the rear Goodyear Asymetric F1 225/45/17 (must be changed real soon more or less worn out totaly)
    I took a tripp yeasterday on approx. 200 miles. I drived carefull from home and i had consumtion of 121 wh/km and on a average speed of 75 km/h
    But back i drived not so carefull and still 138 wh/km in consuption on total the trip
  • Sep 25, 2015
    simonog
    In the UK the performance tyre Tesla recommended is Yokohama 048.

    i understand that due to changing EU regulation, Yokohama has decided not to make the tyre compliant so from now on all 048s shipping state Not for road use.

    Tesla tell me that they are working on what they will recommend instead.
  • Sep 25, 2015
    Stefan T
    They will forbiden for road use next year becase of to much sound emision
  • Sep 25, 2015
    frequencydip
    Crazy, In the US they are requiring electric cars to make more noise because they are too quite and in europe they are outlawing tires because they make too much noise..

    One another note I have been running Hankook Ventus R-S3 tires on my 1.5 for a few months and love them. They grip wonderfully and fit with no issues.

    205/45ZR-16 Hankook Ventus R-S3
    255/40ZR-17 Hankook Ventus R-S3
  • Sep 25, 2015
    smorgasbord
    Tire Rack test of the Yoko AD08r against 3 other tires: http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=172


  • Sep 26, 2015
    Mark77a
    Here in UK
    I just changed my Yoki's for Dunlop Sport Blue response
    Sport BluResponse – Dunlop Passenger Tires

    I have a sport w adjustable suspension so nearest specs are:
    Rear 225/45R17 94W
    Front 195/50R16 84V

    - VERY impressed - not quite as sticky as the yokis in the dry, but v close and much more feel/progression.
    Added bonus: 67db (so MUCH quieter) and MUCh better rolling resistance score (B vs E)..

    reviews:
    Dunlop Sport BluResponse tyre review | Tyre reviews: best tyres 2014 | Auto Express
    Dunlop Sport BluResponse review | Tyre reviews: best tyres 2015 | Auto Express

    I was put on to these by Alexander Sims (BMW racing driver and roadster owner),
    Oh and a set of 4 tyres cost �350 / $230 fitted.
  • Sep 28, 2015
    Mark77a
    Should be $530 usd for 4 tyres fitted, (sorry lost in UK/US translation, along with tires :) )
    and 84W load rating.
  • Sep 28, 2015
    Stefan T

    My roadster will have same set up tomorrow
    I have already the fronts
    And shall change my rear tyres after the work today
  • Sep 30, 2015
    Dean412
    Motor Trend had an article on MSN today titled 16 facts about the Tesla Model X on its unveiling to the public.
    One of the facts stated was that the Model X P90 will have Michelin Pilot Super Sport Low Rolling Resistance tires mounted on it both front and rear.
    285/35 R21 on front and 325/30 R21 on rear.
    This may be an indication as to the brand (Michelin Pilot Super Sport) of Low Rolling Resistance tires Tesla is planning on using for the Roadster 3.0 upgrade.
    The production Model X orginally had Continental Cross Contact tires on it according to the Motor Trend article and the Model X P90 came out with Michelin Pilot SS.
  • Oct 1, 2015
    smorgasbord
  • Oct 1, 2015
    hcsharp
    Lots of us have tried this tire with good results. It performs better than the Yokos in the rain, it's lighter, cheaper, and lasts longer. The difference in mileage between it and the best tire was only about 1% which could easily be due to variables in the test. Too bad they don't make the front size.
  • Oct 1, 2015
    Dean412
    I had the Michelin Pilot Super Sports mounted on the rear of our Roadster and the same original Yoko's mounted on the front today at Discount Tires.
    Price with the use of ride match mounting of each wheel/tire($10.00 EA.) & without road hazard warranty, all four came to $917 out the door.
    A quick trip up the freeway @ 78mph, proved to be a much quieter ride and great handling with no vibration, great ride.
    Tesla has charged me $750 just for the replacement of the rear tires on two occasions in the past.
  • Oct 24, 2015
    dsm363
    Agree. No one seems to make that odd front tire size. I couldn't even find the AD08 in the rear size on tire rack anymore either.
    Think I will try the Super Sports for the rears this time around. Need all 4 tires for this time.
  • Oct 26, 2015
    wiztecy
  • Oct 27, 2015
    dsm363
  • Oct 27, 2015
    wiztecy
    You're welcome.

    I wish I had tire-learning on the 1.5, if so I'd for sure try out the SS combo on all 4 wheels. Hence my urge to upgrade to custom rims to get around this and run the SS tires all the way around.
  • Oct 27, 2015
    thefortunes
    I may have said this somewhere already (maybe even in this thread?) but I switched from AD07s to AD08s and am on my 3rd set of SS (all rear only, as I still have the original AD07s on the front).

    My opinion only, but I do not get the same grip in the dry out of the SS as with the AD07 or AD08, but it is good enough for me. I also believe the wet grip is better with the SS.

    The lower cost (especially since it has a 15k warranty) and quieter ride more than make up for any performance hit, again IMHO and for how I drive. YMMV.
  • Oct 27, 2015
    wiztecy
    Interesting. Appears that the Yoko AD08 is considered an "Extreme" tire and the Michelin Pilot Super Sport is considered a "Max" Tire. If they consider Extreme to be stickier than Max, that would back up what you're feeling between the two in terms of dry traction & grip. However the MPSS came in 1st with their testing which was conducted in both wet & dry conditions, the AD08 came in 3rd. They loved the grip the MPSS had in wet conditions like you also confirmed.

    Comparison testing of tires by Car & Driver:
    Monsters of Grip: Nine Summer-Performance Tires Tested - Comparison Test - Car and Driver

    Yokohama AD08:
    Monsters of Grip: Nine Summer-Performance Tires Tested Comparison Tests - Page 8 - Car and Driver

    Michelin Pilot Super Sport:
    Monsters of Grip: Nine Summer-Performance Tires Tested Comparison Tests - Page 10 - Car and Driver

    Yokohama AD08
    Service description: 91W*
    UTQG tread-wear rating: 180 AA A*
    Load: STANDARD
    Performance category: EXTREME
    Tread depth, in: 9/32
    Price per tire: $199


    Michelin Pilot Super Sport
    Service description: (94Y)*
    UTQG tread-wear rating: 300 AA A*
    Load: EXTRA
    Performance category: MAX
    Tread depth, in: 10/32
    Price per tire: $177
  • Oct 28, 2015
    strider
    What front size would you run w/ the SS's on the stock rims?
  • Oct 28, 2015
    dsm363
    It's not like the traction on the Michelin Pilot Super Sport is bad I would think (given the Road and Track testing above). I go for spirited sprints but never track the car so imagine they would be just fine. I was just trying to keep the front and back tires from same manufacturer but that probably doesn't matter in terms of safety. I really wish Michelin would produce that odd front tire size as well so there were more options than just AD07s. I'm not sure what people will do when Yoko stops making the AD07s entirely (if they ever do).
  • Oct 28, 2015
    wiztecy
    As dsm363 pointed out, the SS tire that fits the Roadster's odd front rim are unfortunately non-existent. In my earlier post I indicated that I would try do all 4 wheels with the SS's and that was just a fantasy as I look back in the thread how there's no adequate solution running the SS's.
  • Oct 28, 2015
    strider
    That's what I thought. But your post made it sound (to me) like if you had tire learning you would run SS's front and rear implying that there is a size that would fit on the stock rims. But it's quite possible I was just reading too much into your post.
  • Oct 28, 2015
    wiztecy
    No, its my wishful thinking one track mind :)

    Only way around this is to wait out and see if someone will supply a good quality high performing tire that is close to the AD0x performance/traction which fits the Roadster's rims or to take the issue into our own hands by dropping down some money on some custom rims. That puts us into a new size/category which offers us a wider selection of choices. I'm not selling my Roadster anytime soon so I've already planned my tire selection destiny.
  • Nov 3, 2015
    m0rph
    I just ordered the Pirelli Sottozero "Series II" tyres for my rear wheels. Who has experience with these?
  • Dec 19, 2015
    Adrian Cockcroft
    Has anyone tried Toyo R1R 205/50-16 on the front? It supports the stock 6" rim and is a little bit bigger rolling radius but that shouldn't matter on the front. I'd run 225/45-17 R1R on the back to keep gearing the same.

    Steering effort is already heavy (I'm on a worn set of 195 wide R888 at present) but I can put up with that.

    I have R1R on another car and like them a lot.

    Cheers Adrian
  • Dec 20, 2015
    ecarfan
    So it's been 7 weeks since you posted and I assume you now have those tires installed on your Roadster. How are they?
  • Dec 20, 2015
    m0rph
    Eventually, I went for the Sottozero III. Now 6500km on them, but we have exceptional warm weather here (13�C). So I still have no winter condition experience.
  • Dec 21, 2015
    Stefan T
    I have put on nokia wr d4 on my roadster
  • Dec 21, 2015
    Alan
    Another set of Yokohama AD08R going on the back today - been really happy with AD07 LTS at the front (they last forever) and AD08R at the back - last for about 8,000 vs 4000 miles when I had AD07s at the back. Wet and dry grip from the AD08s at least as good as the 07s.
  • Dec 26, 2015
    simonog
    How do these differ from the Yoko 048s?
  • Jan 5, 2016
    dsm363
    My local service center says they will only install OEM tires now. Guess it's back to AD07s this go around.
  • Jan 5, 2016
    wiztecy
    Yoko 048's is more of a true summer and track tire. Its stickier so you'll get less life. The AD07/08 is a Spring, Summer, Fall tire and winter where the temps don't drop too low and it doesn't snow. This tire has a rain groove down the middle so less chance of hydroplaning. The 048's are horrible in the rain since there's no groove and allows the tire to float and skate above the water rather than a place for the water to go and get pushed out of the way.
  • Jan 6, 2016
    simonog
    The AD07 / 08 comments really help. Thank you.

    i actually race my Morgan on 048s and find them very controllable in the wet if they are nearly new - best are when they are totally unused. Haven't had really bad conditions on my Roadster yet and the 048s are quite worn...
  • Jan 7, 2016
    Alan
    The AD048s are really aimed at track day use, great dry grip but poor wet grip, short life and are very noisy (on a Roadster). I think they were the standard fit for the Roadster Sport.

    The AD07 LTS (LTS stands for Lotus) is less extreme but has a good balance of wet / dry grip and less noise. The more recently introduced AD08Rs are cheaper, seem to grip as well if not better and last longer (say 7000 miles vs 4000 for the 07 for me) but are only available in the correct size for the back. Thats not an issue for me as tires on the front seem to last forever (>15,000 miles) so I run 07s at the front and 08s at the back. Its a personal choice but I am happy with the setup.
  • Jan 7, 2016
    supersnoop
    The A048's are wider and sticker, making it more difficult to turn at low speeds. I could hardly back out of my driveway with the A048's. Plus, the tires were on my car when I bought it, so I don't know how they were treated, but my whole car shook violently above 70MPH with them. With the AD07's, the car is smooth up to 85MPH (the legal speed limit on the road by my house) and maybe even a little higher.
  • Jan 19, 2016
    dsm363
    Picked up my AD07s so back to original setup. According to my Ranger Tesla passed a policy a few months ago that says they are no longer allowed to mount non-OEM tires on Tesla rims. They'll install the rims if you had the tires put on somewhere else though. A little disappointing.
  • Jan 21, 2016
    Mark77a
    For UK folk .. anyone else fancy a track day to put all these theories to test ?

    My favourite UK circuit is Castle Combe. It has nearby rapid / 60A charging at Leigh Delamere services/Ecotricity (via access roads ;-) )
    ideal for a pre-track boost and after charge to get home.

    Looking to once weather a bit better march +.
    With rear Yoki's from Tesla at �500 a pop vs �80 for Dunlop sport Blue responses - I'll be more inclined to push the limits :)
    I'm very pleased with the dunlops vs Yokis .. much more grip in the wet and more progressive in the dry. But maybe on track the Yoki's might have the edge (until it wears off :) )

    Dates: Castle Combe Track Days - Types of Track Day
  • Jan 23, 2016
    m0rph
    Combine it with the London jdemo install and you have a winner
  • Jan 26, 2016
    Adrian Cockcroft
    Well, now I have Toyo R1R on my car, with the over-sized 205/50-16 on the front (stock rims) and it seems to be working well. The tires are a tight fit and are just about touching the rubber mudflaps when cornering at exactly the wrong angle, but steering effort is lower than before and it feels good. I got the tires via Tire Rack and had them fitted at Trackspec Autosports in Fremont, where they setup the suspension alignments to be similar to an Elise. I don't have many miles on the car yet, but will update as I get more experience with the combination. The extra rubber at the front reduces understeer and helps braking. I did have to reset the traction control for it to learn the new tire diameter and drive it for a few miles to get it to update. I'll get some pictures eventually. Toyo R1R take a while to get delivered, they don't have many in stock.
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