Agree with Brapp 100% on this one. I run this on my race 240. It truly is a fantastic bit of kit. A must for anyone wanting to use high rpm, and a "nice to have" on a road car.
I've had no problems with wear and it's dead quick to adjust. Sharpens up your throttle response after youv'e tightened it, but wines a bit like a supercharger if you over do it a tad!