The product worked as stated but had many draw backs. By turning the idler screw in that far you create a very short grip turn. Only about 1" or so. Like 0 to 60 in a one inch turn. When I backed off to give me more throttle turn I was able to get it to work but noticed as I cruised it slowly began to throttle back on its own. Also I would alway bump it with my thumb when reaching for the grip. Lastly when I backed off the idler screw where I like it then would not hold any speed at all. Gave it a good try but in the end took it off and put it in my saddlebag for an emergency long trip.
All Harley models with star pattern throttle lock. I personally did not like the uncertainty when riding. Purchased a Cramp Buster instead and have been very happy. I wouldn't think about taking a long ride without it