Due to an ASSumption by a fellow racer who tried to get me RA-1’s, there are a set of 15" shaved R1R’s available if anyone wanted to play with them. Make him an offer he can’t refuse and they may be yours. Inquire to him, not me: turbo.scott at comcast.net. One Lap racer, instructor and all around good egg, I hate to see him get stuck with these tires in a size he can’t use.