Yokohama Tyres | Racing Tyres From Yokohama: ADVAN A050 R Spec Sizes and Reviews

It is only sold in Japan and Australia. And there is no 245 option that I have seen - in 15", available sizes are 195/50, 205/50, 215/50 or 225/50.

 

Not available in the US

 

any new data for where the 195 ventus TD soft/205 RE71R/225 RIVAL S fall on this chart?

 

TD soft = R7
RE71R/Rival-SS = Toyo RR

A 225/45/15 or 245/40/15 TD soft would be a game changer in TA for small cars.

 

sweet jesus. there goes the street tire budget.

 

Forgot to mention, neither of these "200tw" tires will last half as long as the RR's.

 

Good for time trials or hill climbs but for hpde they aren't cost effective.

 

And autocross. Which is pretty much what they were conceived for.

 

Came just 5 thousandths of a second off of a TTE record today (previous PTE/TTE prepped miata, also regional directors record ) on a 23 heat cycle 205 maxxis rc1 with a warped front brake rotor vibrating like hell. Rest of the field was also on rc-1s, closest competitor was almost .9 behind on nearly sticker tires.

Im so mixed on this tire. Really wish I would've fixed the rotor. Really wish I would've had a RR or Hoosier on. Really wish I had Xidas.

Last session of the day too.

 

I always thought that car was a spec Miata but with stock exhaust to be under the sound limit, not prepped for E?

 

Nope, not a SM. It classed out as a TTE/PTE car.

 

Interesting. They had told me it was an SM classed into E when it was running back in the day before it disappeared.

Anyways, congrats on the time man, much faster than I've been able to go there.

 

eh, SM wasn't too far off. It was a spring mountain miata series car (guessing someone saw SM somewhere and thought it was a spec miata?), but with all the mods done, it fell into E territory.

ill be getting that record someday. haven't been to that track since I had the speed6. I know where I left time out there too. ps: lap timers are glorious. that helped a lot.

 

Bumping this with a question for the tire gods. I've been running CSP in auto-x this year on rival-s. They have been great but are starting to show their age. I was driving them to and from events until just recently and they really feel like they have lost some stick and are near the wear bars after about 90 runs so I exploring tire options. I don't need the speed Hoosiers can bring since I am still slow and they are nearly twice as expensive as the rivals. I intend on running HPDE events starting soon and I would rather not have my tires only last one weekend. As I can now trailer my tires, and CSP allows slicks, what tire would the tire gods recommend that has similar grip to the Rival S, but will last longer when driven in anger? Treadwear rating and street/slick doesn't matter. Looks like the 245 maxxis VR1 is slower than the 225 rivals based on grassroots testing though if I could get a hundred auto-x runs and a couple HPDEs out of them I could be convinced. You say the Toyo RR is as fast as the rival and last longer, but will it handle the many heat cycles of auto-x ok?

As a side note, it's pretty fucked up when a tire with a treadwear rating of 40 lasts twice as long as one with a 200. Just goes to show you how useful that test is for evaluating motorsports tire longevity.

 

As quantifiable, real-world evidence, personal anecdotes are not worth much. That being said, the one time I had FTD at a local autocross was also the only time I ran Toyo RR's at autocross. The LF/RR pair was showing cords at the outer shoulders and they had 6 HPDE days on them (about 600 track miles) at that point, so they were far from fresh. I went from Gen 1 Rival to the RR's, and there was absolutely much more grip in autocross, but that comparison doesn't help you much.

I would say give them a shot. Recognize that they are directional, and will need to be rotated LF/RR RF/LR on a RWD car, and your wheel mounting guy needs to mount them appropriately.

Times are very much dependent on the autocross. A local friend, Oregonmon, was very close to FTD at the last autocross, on Rival S's. FTD was a prepped Cayman GTS on Hoosiers. Our local autocrosses with the Porsche Club mostly favor miatas, as they are small tight courses that greatly reward grip and that don't allow horsepower an overwhelming advantage. There is still an enormous feeling of pride when a <10k car is chasing down a >100k car, though.

 

If you want a longer wearing tire for that you probably want the rival-S. Typically they'll have half thread depth with 140 so runs on them before they start feeling slow as long as you have camber and dont drive like a dingus.

 

Right, with the rival-s you can get a full seasons worth of auto-x runs before you can take them off and sell them to somebody to stance with, but previous posts have indicated only 2 hours on the road course before they are toast. That's only one weekend (2 HPDE days) and that's really tough to swallow.

 

should revive this chat, some new tires come into the game this season, bfg rival s 1.5, hankook rs4 , toyo r888r, maxxis vr1, nexen nfera sur4, nankang ar1 and more, need your input on those

 

Why don't you buy them and tell us?

 

i pulled the trigger on the maxxis vr1 so ill let you know. but can only compare to rs3 -.-