Ive tried stick on warmers, several types of grips and grip glues, good luck with motocross parts. These grips were easy to install, seem to be stuck on tight, grippy rubber, and warm up sufficiently. Not as hot as some snowmo grips (stock), but work very good for my needs (deep tahoe pow). Skidoo summit, with pro-tapers, these wire directly to stock switch and wiring. Very clean install overall. And thanks to DK for the great service.