I've got the Rocket III heated grips on my Speedmaster. They look very similar to the regular grips, the three-way switch is next to the key. Hot-Off-Warm. I think they work very well. Of course I live in Texas, and we only have two real weeks of winter, but never-the-less. I love 'em. I am a diabetic and have some circulation loss in my extremities. These grips do the job for me.
