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.
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).
According to TEG in this thread some Sports come with AD07s (the downgrade option?). I would prefer the AD07 over the A048 cause the A048s are loud as hell (especially in a virtually silent car...). What a mistake to fit them on a Telsa... If only the Ad08 were available in Roadster size - they are just a dream. Check this Article about the AA08s compared to the AD07s
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.
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).
This is from personal correspondence from Roger Reid for his Roadster Sport... but he also mentions it in one of the autocross results threads.
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.
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.
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
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
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.
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
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?
If 205 wide front tires work, then this tire becomes a possibility: Toyo Proxes R1R - Summer, 140 wear rating
Can we make this wheels as well? I'm interested in upgrading to something nicer. Would love to know my options; what fits. eg: http://www.sector111.com/tesla/tesla-stellacorse.cfm
Then why this choice in tire size difference between Non-Sport and Sport from the Tesla people on the standard equipment? Can you explain?