The Throttle Tamer was one of the first modifications I made to my V2. I used the grips that came with the bike. At first it was laziness because I didn't want to have to take the grip off the left side but on the other hand it was a real bear taking the old grip off the throttle. First you have to break the flange that it is wrapped over And then get it off the old throttle tube. If you have an air compressor you can shoot some air under the grip while pulling and it should be a bit easier. Anyway, I was able to do it and the old grip slid easily onto the Tamer. I put the Kaoko throttle lock on after that and it worked great until I upgraded to the McCruise cruise control.