DavidNJ

Most sizes are missing at TireRack and it is gone from the Yokohama page. As is the A048.

Carbon Blue

they are coming out with a new version with a deeper starting tread depth so that they are legal for STR autox. With their current offering they are not legal for autox competition. It will be interesting to see the times set with the 52s vs the 71r on an autox course.

114_ap2

Where did you hear this???

ckowalc

This is an exerpt from TireRack spring "inside Track" magazine:

Chibo

DavidNJ

I'll need new tires. Just need to decide if I want to squeeze the 245/40-17 on the 7" front rim for B/Street.

What I like is the 295/30-18 and 315/30-18 for folks looking to squeeze wide rubber in their wheel wells. Any racing class that allows them would generally also allow the BFG R1 and R1S and the Hoosier R7 and A7.

Chibo

I think these tires are more targeted at the time attack / time trials where marked TW matters for classing or points towards classing. I am guessing the RE71R is still autocross king since these handle heat on track better, meaning they are likely more difficult to keep in heat range for autocross -- especially without a codriver.

DavidNJ

They are also useful just to get a 'look'. Those are meaty pieces of rubber.

Which one holds temp and is fastest for autocross will be interesting. Many thought the A052 was faster on track. This new version may have more changes than just tread depth. After all, they start knowing the targets are the RE71r and Rival S 1.5, even though that information didn't seem to help Dunlop with the ZIII.

RAizzle