That looks like the vista cruise I used. In the the old forum there was postings on the mods needed to install it, witch was a little bracket you made to hold the bottom in place and a little work with a dremel tool. HTH
http://webcache.googleusercontent.com/search?q=cache:MOioVueRFboJ:forum.concours.org/index.php%3Ftopic%3D64809.0+site:concours.org+vista+cruise&cd=5&hl=en&ct=clnk&source=www.google.com
I have the Throttlemeister and it works great.
But.....
I later bought one of these for my other bike and it works great too. Easy to use, easy to remove and simple design. Best yet it is less than $20.
http://www.2wheelride.com/throttle_pro.html
I use the GoCruise also. It's about as simple as you can get. Works great. It just irritates me to pay $20 for a 50 cent piece of plastic.
The Crampbuster's are also cheap plastic, but they too really help on the slab.
I've never used the Crampbuster myself but I see them on alot of bikes. Are they in the way for just normal riding? Do they really help on long flats?
Thanks.
I've used both the crampbuster and throttlerocker brands. They allow you to loosen up your grip while maintaining throttle pressure. They do work well. But they do not allow you to totally remove your hand from the throttle to shake it out a little like a throttle lock. These are good, but not as much by themselves.
If you use decide to use one. I recommend the throttle rocker over the crampbuster. Although the crampbuster gripping the throttle grip is better. The Carampbuster is a straight piece of plastic that's not ergonomically shaped to fit your palm. I use to tend to give me a sore or blistered palm after use. Where as the throttle rocker is shaped with your palm and thumb in mind. So it tends to fit your hand better and not make your palm sore. So I recommend the throttle rocker over the cramp buster.
But like I said, they are good, but use them in conjunction with a throttle lock or cruise control for much more versatility in riding comfort. Of course this is just my opinion!
It looks like the Crampbuster's do make both a "palm shaped" one and a longer skinnier straight-type one as you mentioned.
...
I have the Throttlemeister and it works great.
But.....
I later bought one of these for my other bike and it works great too. Easy to use, easy to remove and simple design. Best yet it is less than $20.
http://www.2wheelride.com/throttle_pro.html