depends..... I'm running a 3.5 brushless on asphalt with nitro foams.... 5 5min runs tops.... but I have put the JAAD carbon stickers on the pulley on this last rebuild and I've run 6 and it is still smooth!! let's see if I can make 12....
oh ok thanks
Im running 13.5 and i thought it was to quick to rebuild a diff after 10-15 hits. Because I run my car 8-9 Times including practice (5mins run) in one race day. This is getting a little to expensive
hehe