Throttle Lock / Controls

I believe you may be talking about the "Crampbuster" and the "list" price is about $10.95...I have used one but I found mine didn't always "hold" the speed steady, I would worry that with the spring action of the throttle on the Rocket that it would act the same, at least, as it did on my T-bird. But it could and did offer some relief for short periods of time. I think I still have one and if I do I"ll experiment some when I get the Touring and see how it goes. But I would ideally like to have a full fledged cruise control but the prices and designs are all over the map.