Anybody use one. Looks like a simple mod. How effective is it ?
I'm guessing you're talking about this one.
I had one on my 250 for a while, but I had a hard time getting used to it. It made the clutch engage really far out in the lever travel, and you could not adjust that as far as I knew. I have a KTM 200 and a 105 with Magura clutches, and they both work that way as well. I eventually took it off and went back to a cable clutch so I could adjust the release point. I will say that it did make the clutch pull lighter if that's something you are looking for.