Thứ Tư, 23 tháng 11, 2016

2.0 / 2.5 Roadster / Roadster Sport Tire Thread part 1

  • Jan 1, 2011
    suxxer
    Lets sum up all the 2.5 (2010+) tire infos we can find.

    2010 2.5 Roadster / Roadster Sport ?


    Stock Rim Size
    Front 6J x 16
    Rear 7.5J x 17


    Stock Non-Sport
    • Yokohama Neova AD07 LTS - Directional

      Front 175/55/R16
      Rear 225/45/R17

    Stock Sport (actual)
    • Yokohama Neova AD07 LTS - Directional

      Front 175/55 R16
      Rear 225/45/R17

    Stock Sport (alternative)
    • Yokohama A048 Ultra High Performance

      Front 195/50/R16
      Rear 225/45/R17

    Possible Summer Tires (Sport/Non-Sport)

    • Toyo Proxes R888

      Front 195/50/R16 84W
      Rear 225/45/R17 94W RD
      100 wear rating

    • *DISCONTINUED* Toyo Proxes T1R

      Front 195/50/R16 84V part# 245740
      Rear 225/45/R17 94Y RD part# 245600
      280 wear rating

    • Toyo Proxes 4

      Front 195/50/R16 88V
      Rear 225/45/R17 94W
      300 wear rating


    • Dunlop Direzza DZ101

      Front 195/50/R16 84V
      Rear 225/45/R17 94W
      300 wear rating

    Possible Winter Tires (Sport/Non-Sport)

    • Pirelli Snowsport

      Front 195/50/R16 84H at 25 PSI (172 kPa) (Pirelli 210 Snowsport)
      Rear 225/45/R17 91H at 36 PSI (248 KPa) (Pirelli 240 Snowsport)

    • Yokohama W.drive, Yokohama Yokohama

      Front 195/50/R16 H 88
      Rear 225/45/R17 H 91

    • Bridgestone Blizzak LM25

      Front 195/507R16 84H
      Rear 225/45/R17 91H RFT

    • Hankook W300 Icebear

      Front 195/50/R16
      Rear 225/45/R17


    • Continental extreme Contact DWS

      Front 195/50/16
      Rear 225/45/17

    Missing some tires? Drop me a PN and I'll add them.
    �
  • Jan 1, 2011
    suxxer
    Spare space.
    �
  • Jan 1, 2011
    tennis_trs
    I'm pretty sure that on the 2.0 Sport (USA model at least) the standard tires were the 048 and you could optionally "downgrade" to the 07 (this is what I did).
    �
  • Jan 2, 2011
    suxxer
  • Jan 2, 2011
    TEG
    Thanks for crediting me for finding that chart.

    The A048 are "sticky as hell" in warm dry conditions though. ( If you want extreme summer performance. )
    But they don't last very long. They are practically track tires, so I can see how some would prefer the AD07 even on the sport model.
    �
  • Jan 2, 2011
    dsm363
    It doesn't make any sense that the AD08s don't come in the same sizes as the AD07s. I e-mailed Yokohama and got a response saying the simply don't make the front tire size for the AD08s.

    I went to Yokohama's website and sent them an e-mail. I doubt it'll make a difference but maybe if enough people contact them they'll produce the AD08s in 175/55R16 size. Even if they only produced a single batch, people could store them in their garage (front tire size at least).
    �
  • Jan 2, 2011
    kgb
    This is from personal correspondence from Roger Reid for his Roadster Sport... but he also mentions it in one of the autocross results threads.
    �
  • Jan 2, 2011
    tennis_trs
    That was my thinking in downgrading to the AD07s on my Sport.
    With them I'm replacing the rears twice a year; the 048s would probably more than double that rate.
    �
  • Jan 2, 2011
    Jaff
    I've had my Roadster Sport about 3 weeks now...I opted to go with the AD07's rather than the A048's simply because I will be using my Roadster to drive to work...I don't have the luxury of only using it in fair weather so I felt that I needed to include wet weather performance that the A048's probably wouldn't provide.

    It is my understanding (I asked about them) that the AD08's have not yet been approved for use on the Roadster (probably as dsm posted due to improper sizing at this point in time.)

    I've swapped the rims & 07's for the standard rims & Hankook's for winter driving.
    �
  • Jan 2, 2011
    tennis_trs
    From the above link
    They added sizes but didn't keep all of the AD07 sizes, including one of the ones we care about?

    At the same link it says:
    Tirerack.com shows the minimum temperature for both 07 and 08 as 14 (not -14) degrees Fahrenheit:
    From
    http://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=ADVAN+Neova+AD08
    http://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=ADVAN+Neova+AD07
    �
  • Jan 5, 2011
    dsm363
    I just called Yokahama Tires and spoke with customer service to request that they make the front tire size in the new AD08s. They took my information down and said a product specialist would get back with me. Maybe if enough people call, it might help.

    Dave

    Consumer Affairs
    1-800-722-9888
    Monday thru Friday 6:00AM - 4:45PM Pacific time (9:00AM -7:45PM Eastern time)

    Yokohama Tire USA
    �
  • Jan 5, 2011
    Dragon
    Maybe somebody schould try to go with the AD07 front and the AD08 rear? ;)
    �
  • Jan 5, 2011
    dsm363
    I had thought about that but some people recommend against mixing tire types. I guess I'll just keep using the AD07s until there is a better option. They seem like really good tires to begin with so no problems. It's just that the AD08s are supposed to be better so if they were available, I'd use them.
    �
  • Jan 6, 2011
    Tdave
    Toyo makes a few different tires that fit the Roadster (Sport). Pick your stickiness vs tread life. I'm having the R888's put on my car now. I'll report my findings. The 100 wear rating is right about where I want to be, traction vs tread life, as compared with the 60 wear rating Yoko tires that come stock.

    Toyo Proxes R888 - Summer/Track, 100 wear rating
    Toyo Proxes T1R - Summer, 280 wear rating
    Toyo Proxes 4 - All-Season, 300 wear rating
    �
  • Jan 6, 2011
    Dragon
    Don't remember where, but I read that you can fit the Front 195/50/R16 without problems on the Non Sport Roadster. Can you people share some opinions and toughts about that?
    �
  • Jan 6, 2011
    Tdave
    Yes. Same wheel, same fender, same everything else. So no problem.
    �
  • Jan 6, 2011
    Tdave
    If 205 wide front tires work, then this tire becomes a possibility:

    Toyo Proxes R1R - Summer, 140 wear rating
    �
  • Jan 6, 2011
    mpt
  • Jan 6, 2011
    suxxer
    Added the Proxes to the summer tires
    �
  • Jan 6, 2011
    Dragon
    Then why this choice in tire size difference between Non-Sport and Sport from the Tesla people on the standard equipment? Can you explain?
    �
  • Oct 5, 2011
    Eberhard
    I have 195/55 R16 on front and 225/45 R17 back. I have to replace my back too, lets see what my dealer can provide me.
    �
  • Oct 5, 2011
    VolkerP
    hope your back doesn't need replacement. First try Kieser training.
    �
  • Oct 5, 2011
    kgb
    Whaaa?! :eek: It's finally cool enough to drive with the top down.
    �
  • Oct 5, 2011
    strider
    I'm going to be dropping my car off for its first annual in early November and I asked if they could install non-OEM tires while it was there (Leaning towards the Toyo Proxes-4). Service writer said no problem - I could even have the tires shipped to the shop. Though he did give me a warning about TC being "optimized" for the OEM tires and I may see the light come on more often, etc. Of course there's a trade-off. The AD-07's are toast after 11,000 miles so anything that lasts longer will have less grip and so will trigger TC in aggressive driving.
    �
  • Oct 5, 2011
    samcarney
    11,000 miles? That's great I am on my 3rd set of AD-07's @ 19,000 miles. I can't seem to get more than 8k out of the rear's, and I think I am a somewhat conservative driver, except for an occasional "mad moment". It is after all an "electric super car!"
    �
  • Oct 5, 2011
    dsm363
    Yeah. 11,000 miles is about 4,000 miles more than most people get. I'm at 6,000 miles and am almost ready for new rear tires. I'll probably stick with a new set of AD07s and think about it again when it comes time to replace the fronts as well. I may try mixing AD08 rears with AD07 fronts.
    �
  • Oct 5, 2011
    Doug_G
    I have been going through my rears in about 7,000 kilometers. That's about 4,500 miles. I guess I like acceleration...
    �
  • Oct 6, 2011
    Eberhard
    I have the some tires on my Roadster. The first set lasted 15.000km until i had to replace the back one. They are unbelievable smooth and silent. No problem with TC and with has sufficient grip (non sport). The rolling resistance is quite low, as good as the AD07.
    �
  • Oct 6, 2011
    strider
    Thanks Eberhard for the recommendation! I found a website that claims to have T1R's in stock. But if you killed the 4's in 10k miles perhaps I should just go that route. The 4's are a lot cheaper than the T1R's.
    �
  • Oct 6, 2011
    Doug_G
    For me, T1R lasted about 20% longer than AD07, in terms of mileage. Not negligible, but not huge either.
    �
  • Oct 6, 2011
    Eberhard
    First 1 wanted the T1R but my dealer advised to take the CF1 instead.
    �
  • Oct 7, 2011
    cinergi
    I didn't keep track of exact miles ... but.. I have just under 10k miles on the car... about half of which would have been on winter tires, and the other half on the AD07's. I'm almost at the wear bars on the rears! -- and I don't really drive that aggressively .. ! Pics:

    IMG_0092.JPG
    IMG_0093.JPG
    IMG_0094.JPG
    �
  • Oct 9, 2011
    dadaleus
    I'm considering snow tires this winter even though I live in Southen California because I go up skiing at Big Bear every other weekend. Since I've never owned snow tires before, what is their effect on everyday (non-snow) freeway driving? Do they reduce range? Increase noise much?

    Also what do people do when chains are 'required'? I assume the answer is 'don't drive the roadster' but thought I'd check.

    EDIT: just realized this is a bit off topic since I have a 2.0 sport, not 2.5. But seems this may still be the best place to ask.
    �
  • Oct 9, 2011
    Doug_G
    Snows are noisier and wear quickly in warm temperatures.
    �
  • Oct 10, 2011
    cinergi
    Although the Hankook's are quieter than the AD07's!

    I try not to drive on snows if the temps are consistently above 55F. You're also not going to get nearly as good dry pavement performance.
    �
  • Oct 10, 2011
    dadaleus
    Hmm... maybe not then. No chains right? So just need to make sure I know the weather before I head up.
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  • Oct 12, 2011
    btown
    I had to replace my rear AD07s at just over 7K miles. I'm over 10K now and the fronts are still fine.
    �
  • Oct 15, 2011
    hcsharp
    Hankook I*Cept Evo W310

    Has anyone tried Hankook I*Cept Evo W310 winter tires? It looks like they came out with them last year. They are speed rated better than the Winter iPike W409 but I wonder if they grip as well on snow and ice. I wonder how they compare to the Pirelli's that were discontinued, or the W-drives from Yokohama.
    �
  • Oct 23, 2011
    tennis_trs
    I believe that there aren't any (significant) tire related differences between 2.0 and 2.5. Isn't the main difference that 2.0&2.5 firmware support "learning" new types of tires and 1.5 firmware doesn't?
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  • Oct 23, 2011
    Doug_G
    As far as I am aware, there are no differences whatsoever between 2.0 and 2.5 when it comes to tires.

    Yes, the 1.5 doesn't have the tire learning feature.
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  • Oct 24, 2011
    Mitrovic
    I just put new back tyres on my Roadster Sport. I had Continental tires for 12 000 Km now, and now I've put Hankook Ventus Prime2.
    �
  • Oct 26, 2011
    Mitrovic
    I do not feel any changement from continental to Hankook. But have not driven too aggressively.
    �
  • Oct 26, 2011
    strider
    Eberhard, I'm picking my Roadster up today with the new tires. What pressures are you running?
    �
  • Oct 26, 2011
    btown
    That's what I did. I've got AD08s on the rear and the original AD07s on the front. I haven't seen any difference in TC (once they were broken in). The AD08s looked to be pretty identical in terms of most of the specs and they were $100 cheaper per tire.

    There is some minor difference in tread pattern:

    YokoNeovaAD08_2.jpg
    AD08

    yo_advan_neova_ad07_ci2_l.jpg
    AD07
    �
  • Oct 29, 2011
    Eberhard
    front 2,1bar back 2,8bar
    �
  • Oct 29, 2011
    strider
    That's what I went with. Thanks!

    Initial feedback is that they ride softer than the AD07's. Less traction (was only able to pull .67G on acceleration vs .75G w/ the AD07's) but this was Day 1 so I'll give them some time to break in. Also, I knew they had less traction - that's kind of the whole point as this is my daily driver and I need tires that last longer than 11,000 miles (and are cheaper).
    �
  • Oct 30, 2011
    Eberhard
    at the beginning, the new tires are a little slippery. But will improved within the first 100km.
    But the durability depends most on your driving style.
    �
  • Oct 31, 2011
    PV-EV
    So the 195/55 do fit the front? I hadn't seen that size listed here yet. I can't find the 195/50 locally so was hoping that the 195/55 would fit. I'm looking at getting a set of Nokian WR G2 which is recommended by Consumer Reports. We drive on snow/ice 5-6 months/year.
    �
  • Nov 2, 2011
    Dragon
    Have changed to winter tires last week. The front tires are Pirelli 210 Snowsport (195/50), the rears Pirelli 240 Sottozero S2 (225/45). Had only AD07 until now and am missing the fast acceleration with them. The TC comes on every time when I accelerate or regenerate hard.
    �
  • Nov 2, 2011
    Eberhard
    sorry, my mistake. i have 195/50 R16 in the front same as for the winter tires, i have to change tomorrow
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  • Nov 7, 2011
    Mitrovic
    It was very wet today. There was a pathetic AMG Mercedes just right to me. Classic scene. Red traffic lights, becoming green. The Hankooks are definitely great on a wet road on acceleration.
    What AMG? I have not seen it anymore...
    �
  • Nov 7, 2011
    Dragon
    You are still driving with summer tires in Switzerland!? :frown:
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  • Nov 8, 2011
    Mitrovic
    Its like spring time over here! On sunday I even took the top off!
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  • Nov 8, 2011
    Dragon
    I suppose you don't use the roadster in winter time? I switched to winter tires a week ago. It was too soon, because we had a mild climate and this weekend will get 17� again. Did drive last week without top, but decided to put it on after a half hour. I guess what I define cold (ca. 15�) is warm for you. ;)
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  • Nov 8, 2011
    Mitrovic
    Well, actually my personal limit for the top off is 14 C, but on sunday, it was 16 C in the shadow.
    I have my Roadster since January and since then I used it to at least 80 % as a daily driver. The roads where I comute have not been snow covered since last january!
    I don't plan to get winter tyres, I will take another car if its necessary. I'm not afraid of winter tyres or on the performance of the roadster on snow. But in Switzerland they use a huge amount of salt, and that's what I'm trying to avoid with the Roadster even though it is very well built.
    �
  • Nov 18, 2011
    smorgasbord
    Rear Tire Alternatives

    Here's a link to DiscountTire, for 225/45Z17s: http://www.discounttire.com/dtcs/toggleShowingAllTireProducts.do?fcpr=*&c=2&rcz=95030&ar=45&fcsr=Z&rf=true&fcs=false&rd=17&ct=null&rc=CSBINT&cs=225&fclr=*&cf=false&fcb=*&sw=false

    As of this posting, it returns 68 tires, all "AA" UTQG rated, with wear ratings from 60 (Yokohama ADVAN A084, which is the standard Roadster Sport tire I believe) to 500 (Michelin Pilot Sport A/S Plus). There are some run flats as well. The AD08 (seems to have replaced the AD07s), are 180 for wear.

    Are none of these other tires worth considering? The A048s are the second most expensive on the list. I have AD07s on my non-sport now.
    �
  • Nov 18, 2011
    Dragon
    It's 68 tires if you don't care mixing different tire models for the front and rear. If you care, it's down to just a hand full. There really aren't more tire combinations avalaible as have been listed on the first page of this thread.
    I still hope for the AD08 in the front size coming next year.
    �
  • Nov 18, 2011
    smorgasbord
    I don't mind mixing tires on different axles. There are Pirelli, Michelin, and Bridgestone tires in the rear sizes that have pretty good reviews. Some have better treadwear. I know there's often a correlation between performance and treadwear, but it's not absolute.

    Has no-one tried other tires that might perform as well as the standard Yokohamas, yet have longer treadlife?
    �
  • Nov 18, 2011
    Doug_G
    I asked Yokohama and they said, "we're still making the AD07 just for Lotus and Tesla".
    �
  • Nov 18, 2011
    richkae
    I am on about to replace my rear AD07s again after about 17000 miles.
    The fronts are at 5/32 and the rears at 3/32 - so I have used about 4/32 of front tread ( from 9/32 ) and 14/32 of rear ( from 10/32 down to 3 twice )

    However I have been driving on Toyo Proxes R888s this summer - about 3000 miles.
    The fronts are at 5/32 ( from 6/32 ) and the rears are at 4/32 ( from 6 ) - so I have used 1/32 from the front and 2/32 from the rears.
    Unfortunately the R888s are much softer to directly compare - but I am only trying to compare the difference in wear from front to rear.

    When I got the R888s I had a wheel alignment done and removed all of the toe in from the rear - there was a lot of toe in.
    I think that getting rid of that toe in has lessened the rear tire wear ( instead of 1 to 3.5 front to rear it is 1 to 2 ) - I certainly dont believe that the R888s have better wear than the AD07s
    However you may not like the way the car drives with it gone, bad road makes it wander a little more - taking more effort to stay straight and the car understeers less ( which I like ).

    I will report again after driving on AD07s for a few thousand miles with the wheel alignment the same as it has been.
    ( I should have put the AD07s back on over a month ago )
    �
  • Nov 18, 2011
    smorgasbord
    AD07 vs AD08

    According to TireRack, the AD08 is 1 lb lighter than the AD07. However, the AD07 has 1mm more tread depth.
    �
  • Nov 18, 2011
    hcsharp
    I've been trying to answer this question too. Some people have had bad experiences mixing different tires on different axles. Still others have had success when the front and rear tires are similar design. I can't afford to keep putting AD07s on the back every 4000 miles. I'd like to try the Hankook Ventus on the rear with the AD07 on the front. They are reasonably priced and look like similar design. Mitrovic - what did you have on the front when you had the Ventus on the rear? Other than acceleration, how did they handle compared to the Yokos?
    �
  • Nov 19, 2011
    ViperDoc
    Sottozero 240?

    If those Sottozero's are new, are you sure they are Pirelli 240's? I didn't think those were available (I have been looking), although Pirelli 210 Sottozero's are.

    Thanks

    DJ
    �
  • Nov 20, 2011
    Mitrovic
    I had Continentals front and rear.
    Now I have Hankooks at the rear and Continentals at the front.
    So far I have no problem having two different tires front and rear.
    I must confess that I do not see any difference with the new tires, but I remarked that the Hankooks gave me excellent grip at acceleration when it was wet. Of course, I can not compare it scientifically to the Yoko's or to the Continentals.
    �
  • Nov 24, 2011
    smorgasbord
    Special AD048s for Lotus?

    In my search for tires, I came across this from Yokohama http://www.yokohamatire.com/assets/docs/yokohamatire_advan_a048.pdf

    It has a special listing for Lotus Elise Sport tires. They have different Part #s than the same size tires in the same model with the two standard compounds. Spec-wise, the UTGQ for the Lotus versions are 60/AA/A instead of 60/A/A and weight drops from 23.2lbs to 21.09 for rears and from 19.79lbs to 18.66 for the fronts, comparing to the "MH" Compound. The "M" Compound is different yet, but closer to the MH than to the Lotus version.

    What's up with these special versions? Are these the versions that shipped on Roadster Sports with the 048s? Tirerack has them priced at $10/tire more than the AD07s (rears). The non-Lotus AD048s in the same size are $27 or $28 cheaper, depending on compound. I thought I remembered that when ordering a Roadster Sport, you could save something like $200/tire by not getting the AD048s. Have the AD07s gone up in price, or have the AD048s dropped, or am I even more confused than usual?
    �
  • Nov 24, 2011
    tennis_trs
    I don't know anything about different versions of the AD048s, but I'm pretty sure that I didn't get any reduction in price from getting the AD07s instead of the standard AD048s on my Sport.
    �
  • Nov 24, 2011
    Doug_G
    Funny, they wanted to charge me $975 for "Performance Tires" for my base Roadster. Seems to be a one-way option.

    Tesla ships the MH compound, I'm told.
    �
  • Nov 26, 2011
    Dragon
    Sorry for the late reply, didn't see it earlier.
    I can confirm they are indeed Pirelli 240 Sottozero Serie 2 tires. Easy to get them here in Italy, homeland of Pirelli.
    �
  • Dec 13, 2011
    DrTaras
    After years of putting on AO48s, and changing them, at great expense, multiple times, winter has arrived in LA. That means about 3 months of sub 40 degree temps during one hour in the early morning about 3 or 4 times per month as well as about a fortnight of rain during those 3 months, but not consecutively. But that aside, with the economy being what it is, I'm concerned that if I put flashy new tires on my Roadster that OWS might want to occupy Tesla! That & I've already blown through the $1.5K of winnings from My Ride Rules! :tongue:

    I've kept abreast of this thread and I have not seen any posts about the Kumho Ecsta ASX or Kumho Exsta 4X. I think I like the look of the ASX better.
    Any thoughts, comments or random musings? :rolleyes:
    �
  • Dec 13, 2011
    dsm363
    Have you thought about just going to the AD07s at least? They'd do fine in that weather and would last at least twice as long. There are others mentioned that last even longer as you've read but don't fit the front size exactly.
    �
  • Dec 13, 2011
    ggr
    I have the Ecsta ASX's on both front and back. I also have Ecsta's on my Merc CLK 63... not sure if they're exactly the same tires or not. I love them on the Merc, although it doesn't get driven much. But I hate them on the Roadster. The rears just don't hold the road well... I see a lot more of the traction control kicking in, and it means it, because the car is usually going slightly sideways at the time. (Yes, I did the calibration thing a couple of times.) They also haven't worn well, which is good, 'cuz I get to replace them with something else soon.
    �
  • Dec 14, 2011
    DrTaras
    Wow! This is what the Internet is all about! Power to the people! Thank YOU ggr!
    �
  • Dec 14, 2011
    DrTaras
  • Dec 14, 2011
    Dragon
    The reviews at tirerack would suggest these are not good for the Tesla Roadster... or any other sports car.
    �
  • Dec 18, 2011
    Timothy
    I was looking at the posts on the bulletin board about tires for the last couple of months. I just checked and my rears are down to the wear bars at 6200 miles--the fronts are fine--so I need new rear tires.

    Doing some research on the tirerack I came up with Michelin Pilot Super Sport at $177 as opposed to the Yokahama AD07 at $309 each. (And the AD08 tires are $199.) The Michelins had be best ratings of all:

    Consumer Survey Results By Category

    Has anyone tried the Michelins or have any information on them?
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  • Dec 18, 2011
    DrTaras
    I decided to change from the Yokahama AO48s in baby steps to the AD07s. I think if I had to over simplify, the tread rating on all the tires I was looking at was min 240 and max 400.
    The AO48s are rated at a 90 & the AD07s at a 180. I think that the softer compound is necessary because the torque is so voracious on the Roadster that a harder (longer lasting) compound will not give as much and therefore slip and cause the Traction Control to alert. That's my theory, anyway.
    �
  • Dec 18, 2011
    smorgasbord
    You might want to consider the AD08s for the rears. $100 less than the AD07s, supposedly better grip and slightly better wear - both due to compound improvements.
    �
  • Dec 18, 2011
    hcsharp
    I was planning to try these on the rear in the spring when the snow melts. They don't currently make the front size so it will be a risk mixing tires front and rear. That tire has consistently good ratings for both dry traction and low rolling resistance. It's still relatively new so maybe they will start making the front size soon. It also has a 15000 mi warranty (30k if front and rear tires are the same size). I think you should try them Tim and give us a report!
    �
  • Dec 19, 2011
    ggr
    Yes, I had the Michelins for a while, on the rear only (the original Yokohama performance tires on the front). When it was time to replace them, for some reason matching fronts were not available (or maybe neither front nor back, it was about 18 months ago) so I ended up with my not-recommended Kumhos. I did like the Michelins.
    �
  • Dec 20, 2011
    DrTaras
    That's exactly why I didn't go with the AD08s
    �
  • Dec 20, 2011
    Doug_G
    A fellow I know has an Elise with AD07 on front and AD08 on the rear. He says it works just fine.

    On the other hand, Tesla advised against mixing front and back tires, because they might not expand at the same rates when heated, which might confuse the traction control. (Couple of "might"s in there.)
    �
  • Dec 20, 2011
    smorgasbord
    Does Tesla's Traction Control even deal with the front tires? When Tesla filed for an exemption from providing a full ESC system on the Roadster, they said:

    As for differing expansion/contraction rates, the front tires are a different size than the rear tires. Even with the same model of tire, the fronts and rears will have differing rates of expansion. And, let's not forget that we replace the rears with new while keeping the semi-worn fronts in place. That strikes my layman's mind as more of an issue, but we do it all the time.

    Finally, Tesla service in Menlo Park will only install AD07s, AD08s, or AD048s, but expressed no reservations about installing AD08s on the rear of my car that has AD07s on the front.
    �
  • Dec 20, 2011
    dsm363
    It would be nice if Tesla said they officially support their customers putting AD08s on the rears with AD07s on the front. Guess I could just try it but just put new AD07s on the rear.
    �
  • Dec 20, 2011
    Doug_G
    Given the number of "Ranger Legends" out there, you can't really be sure.

    Presumably they accounted for the different front/rear sizing when they designed the system in the first place. If it matters, of course.

    The system probably assumes that the tires will indeed "shrink" over time, and has been tuned to accommodate tires from the original size down to the wear bars. Either that or it slowly adapts over time, and just needs the retraining for new tires because it's a sudden change.

    I'm not even sure I entirely believe that the difference in expansion between different tire brands would be that significant. But what do I know...

    +1!
    �
  • Dec 21, 2011
    DrTaras
    The Tesla-LA service said this, "Tesla has 3 approved tires: AD07, AO48 and a set of snow tires. I don�t have any info on the AD08�s. " so a disparity between the service centers. This speaks to a deeper problem which I've mentioned will be Tesla's Achilles Heel. If Tesla is trying to emulate Apple, one thing you get is homogeneous service no matter which Apple store you step into, whereas the same can not be said between the differing Tesla Service Centers. This is something to be concerned about!
    �
  • Dec 22, 2011
    hcsharp
    While that may be a problem now and then I think it works in our favor more often than not. If every service center took their marching orders from HQ in Palo Alto it would be worse overall service IMHO. Here in the Northeast we have requirements that often differ from other parts of the country. Our service center is aware of these differences and handles things accordingly. We've all seen companies grow and become more centralized, leading to less independence at the local store, resulting in less flexibility and ultimately worse service. Just my .02
    �
  • Dec 22, 2011
    cinergi
    There are wheel sensors in the front and if the speed between front and rear is too great, traction control kicks in.
    �
  • Jan 13, 2012
    Dragon
    Anything new from Yokohama? Do they still produce the Advan Neova AD07 LTS? Any news that give some hope the AD08 will come in our sizes? The Tesla Roadster disappeared from the car listing on yokohamatires.com.
    �
  • Jan 13, 2012
    dsm363
    No news that I'd heard about. I believe it disappeared from their website since they're only still producing those tires for Lotus and Tesla customers through other outlets like Tirerack.com or others. Still don't know why they just won't come out with the AD08s are replacements.
    �
  • Jan 25, 2012
    zylstra
    Eberhard, I believe you are referring to the Toyo Proxes 4 here. Are you comparing the noise level of old AD07's to new Proxes 4's (old tires are almost always louder than new), or is this your sense in general for the tires. Thanks.
    �
  • Jan 26, 2012
    strider
    I've had the Proxes 4 on my car for about 3 months and 3,000 miles and I'm happy with them. They take a little while to warm up and until then are much less grippy than the AD07's. Once they're warm they are closer but still have less grip (completely expected as I wanted a tire that would last longer and longer life = less grip no way around it). But they handle well in the dry and rain. They are quieter than the AD07's, even when they were new and they feel like they give a softer ride (but I may just be getting used to the Roadster). IMHO, for a daily driver the Proxes 4 are great. For a sport driver I would like something stickier.
    �
  • Jan 26, 2012
    Eberhard
    i compared to new ones. first replacement was AD07 and my dealer gave me an advice to try the Toyo Proxi 4.
    �
  • Mar 19, 2012
    Mitrovic
    The German magazine Auto Bild did a huge test of summer tires 225/45 R 17.
    Toyo Proxi was not that good.
    Among the things they discovered was that the difference in rolling forces ( ? ) between the best and the worst is 7 %.
    �
  • Mar 19, 2012
    hcsharp
    Interesting that Tire Rack came up with very different test results, as did Consumer Reports, who wasn't that much different from Tire Rack. Auto Bild gave heavier weighting to wet performance, perhaps explaining the difference.

    A tire that caught my attention in the Tire Rack and CR tests was the Michelin Pilot Super Sport. It's very light, has excellent (low) rolling resistance, good tread wear and high performance. OEM on some of the Ferrari 599 models last year. I wonder how it would work with Advan AD07 on the front.
    �
  • Mar 20, 2012
    benji4
    These tires look like the would work with the Roadster.

    TOYO DRB
    Rear: 225/45R17 91W
    Front: 195/50R16 84V

    These would save a lot of cash obviously, but what would the downside be of using something like this and has anyone tried them?
    �
  • Mar 20, 2012
    frequencydip
    these are not for sale in the US, and they dont seam to have a DOT rating..
    �
  • Mar 20, 2012
    benji4
    Here is a link

    TOYO DRB | Toyo Tires

    So this is not even sold in the U.S.? In Japan they are sold for as little as $110 for the rear tires and $90 for the front.
    �
  • Mar 23, 2012
    vfx
    I didn't trust anyone. I stood and watched a Sears. Does not matter where I went. I stood and watched.
    �
  • Mar 23, 2012
    smorgasbord
    Tire shop guys will LOVE your car. Give the service guy a tour. Hand him a copy of the manual page about jacking the car. Get him to put his best person on it, and meet that person. He/She will love working on an exotic car.
    �
  • Mar 23, 2012
    hcsharp
    I went to 2 garages and they both said "We won't touch that thing!" Finally I found a place with a special machine made for low-aspect ratio tires on alloy rims. And they let me jack my own car, and use calibrated torque wrenches instead of air. They took pride in knowing they were the only shop I would use. Ironically they scratched my rims anyway on the balancer (but took responsibility and paid to fix it). Like Eric said, don't trust anybody. And make sure they know you're watching. Take pics of your rims before you go in.
    �
  • Mar 23, 2012
    vfx
    I considered going to the TO Lotus dealer. Seems safe.
    �
  • Mar 24, 2012
    tennis_trs
    Nearly everyone who has taken a wheel off my Roadster has put at least one scratch on at least one of the wheels. This includes Tesla technicians, but I believe they have the best record of scratching the least. It's one downside of the black wheels. I have enough scratches that I'll probably look into getting them all fixed soon. I can't believe that almost no one can remove and replace a wheel without scratching the wheel with the wrench.
    �
  • Mar 24, 2012
    DrTaras
    Tesla-LA scratched mine as well, but would NOT fess up and pay for it
    Hate to sound like I'm beating a dead horse but http://www.AE54.com has done my tires (through their subcontractor) multiple times and never scratched the wheels.
    �
  • Mar 24, 2012
    dsm363
    The tires are $300 each I think and they charge $50 to install them (around that). Not sure where they are getting the $1,000 from. If your car is already there it's worth having them just do it but I'd talk about the price.
    �
  • Mar 24, 2012
    Doug_G
    Scratches could be an issue. I get mine changed by a garage owned by a neighbour, and I stand there watching while they do it. They're very careful, but they have commented on how the machine they have just barely accomodates my rims. They have to take extra care because of that.
    �
  • Mar 24, 2012
    ggr
    For people in San Diego I highly recommend Miramar Performance Tire.
    �
  • Mar 25, 2012
    benji4
    At that price tires are going to end up costing you as much as a new battery pack over the first 100,000 miles or so assuming rear tire replacement is needed every 5,000 miles! I was quoted $900 for the rear tires including installation from the Tesla Tokyo dealership, so not quite as bad as your case but just about. They will install tires I have shipped to them for around $60 per tire, however, which is why I decided to put Toyo DRBs on the rears for around $110 each.
    �
  • Mar 25, 2012
    cinergi
    I just ordered AD08's for the shop repairing my Roadster (from my accident) to install ... They're replacing the winter Hankook's so commenting on them will be hard (I've forgotten how the AD07's were at this point) but I'll post my observations after I get the car back (ETA is 4/5/12). $199 ea. at Tire Rack
    �
  • Mar 25, 2012
    frequencydip
    What are you putting on the front? the AD08 doesn't have a front fitment listed at tire rack...
    �
  • Mar 25, 2012
    cinergi
    My original front AD07's still have plenty of life in them -- haven't replaced them yet.
    �
  • Mar 25, 2012
    Doug_G
    AD08 are not available in the front size, but AD07 are still being made for Tesla and Lotus. I also plan to go to mixed AD07/AD08 when my T1Rs wear out.
    �
  • Mar 29, 2012
    NigelM
    Ranger is here, doing mine as I write, $300 each. (Not sure what the install cost will be but he was here for something else). Great Tesla service - The Ranger found a good local tire shop, removed my wheels, has taken them over there to supervise the fitting, then will bring them back here and fix back on my car.

    P.S. I did opt to put AD07's back on. Ranger tells me he typically replaces 3 or 4 sets of rear to every set of front.

    P.P.S. I looked up the price for AD07's and local shops could get them for best price of $345 plus shipping.
    �
  • Mar 29, 2012
    Tesla 940
    Replacing Tires

    I had the Toyo tires put on the rear at 8k. I drove the car into the service area, changed into ragged shorts and t-shirt and "hands on" insured that the floor jack was in the exact proper location. I stood there the entire time. When it was done, I changed back into clean shorts and t-shirt (that's pretty much all I wear) and drove the car out of the service area.

    I did notice a significant difference in the noise level with the new tires, but I can't begin to honestly compare the noise level between new Toyo and new 07s.
    �
  • Apr 2, 2012
    ViperDoc
    I am looking to replace my rear AD07's as well, and I was planning on the AD08 from Yokohama. Is there any downside anyone can think of if I put on new AD08 rather than new AD07. The AD08's look like they might wear better and are less expensive.
    Thanks.
    �
  • Apr 2, 2012
    Doug_G
    A while back my Ranger recommended using the same rubber front and back, because "the tires might have different thermal expansion characteristics and that could confuse the traction control system". But I was asking about possibly mixing Toyo and Yokohama. In this case we're talking about the "new" version of the same tires (AD08 replaces AD07), and the construction and materials should be reasonably similar.

    Also I know someone who is running his Lotus Elise with that very combination, and he says it works great.

    AD08 are supposed to have superior wear, which is a big plus in my books.
    �
  • Apr 2, 2012
    ViperDoc
    Great. I thought it should be reasonable!

    Thanks!
    �
  • Apr 5, 2012
    NigelM
    FWIW, I had forgotten how quiet the Roadster is when new. After getting the fans cleaned and new AD07's on the rear the car is whisper quiet again. Amazing difference.
    �
  • Apr 5, 2012
    jerry33
    New tires are almost always quiet. A very few tires remain quiet throughout their life.
    �
  • Apr 9, 2012
    Eric from NE
    Had a local tire shop recommend the Michelin Pilot Sport A/S as a replacement for the rear Pirelli all-seasons that are on there now.

    I noticed a few other people on this thread had mentioned them as well. Any thoughts after some time with the Michelins?
    �
  • Apr 9, 2012
    Doug_G
    Check whether those tires are actually available in a size that fits the Roadster. The fronts in particular aren't available in many tire lineups.
    �
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