I used a 2002 Cr 250 air boot. I have to say its a little tricky and I will probably fix a couple things on it as time goes on. I saw in one post on this forum were a guy bought a service honda Kx and said that the bolt on the air boot rubbed the shock, and after just getting mine on there I can see were if your not real carefull it can happen I just happened to have some real nice slim head bolts that used and it should be good. But I have say that it clears the shock good and lines up just about perfect.