I use them on my race car and there are about as good as you can get pound for pound, not tried the khumo V70 that some of the guys in my championship run.
At a soaking wet knockhill and snetterton in 2012 the grip was fantastic compared to guys around me check out this video of me outbraking the evo after the bentley straight on lap one at snetterton on 888's
shame the knackered cylinder head and resulting missfire ruined my race lol



steve