The RR version is made of similar compund to the 208GP rubber. They are far stickier than the OEM 207R and warm up quickly as well. I don't suppose they'll last as long as the OEM rubber but I wanted more grip through the twisties and they delivered. I also downsized to a 190 rear (they don't make a RR in 200) so it seems to help quicken side-to-side flicks as well. Esses are serious fun with this kind of power and handling. Can't wait for weather to warm up a bit now.