There are Throttlemeisters,Wunderlich,Kaoko Y Manic Salamander in the end bar mounts, take yer choice!
In the clip on versions there are Go-Cruise in the plastic $20 version & they have a tension screw model for $31. Then there is Omni-Cruise for $50 thats CNC machined from alu, has tension screw & also has a plastic delrin rub strip to go against the brake lever. Rider magazine has a writeup on the Omni in latest issue. They are made by a one man business in USA.
What about the Chinese $20 Crampbuster copies-anyone tried one yet? They come in all colors too.
I went back and dug out the box that my device came in and it also is the Go Cruise. As I said earlier, it works fine for me. I usually will opt for the simpliest piece of equipment that will get the job done. More frills, more things to go wrong later.
On the coast of Kansas
My thoughts exactly. I don't run down the road very far with my hand off the throttle. I've had/have electronic cruise controls on bikes but the simple throttle lock works just fine, if not better, for me.
I have a Throttlemeister on my 800S but Id rather have a thumb-operated mechanism.