Sitting here looking at a Rekluse z-Start Pro for Harrison's CRF150RB and thinking it's going to go in it today sometime. He doesn't want one because he thinks its important to learn how to use a clutch which I totally agree with him. The thing is, I am amazed at how well he is riding that thing as it sits so I think he more than has the clutch down. Last Saturday we took one of my friends boys who has the same bike with a Relluse I'm it and everything just looked so much easier. The 150 has tall race gears and that makes the tight stuff a ton harder with race gearing so the reality of it is, all his future bikes will have them so I think it's going in today and if he doesn't like it, I'll pull it out and sell it