Okay,.. so you can buy one of these for $20.00...
Gerry has one and it works great...
See here...
http://www.2wheelride.com/throttle_pro.html ..but,.. $20.00 for a piece of plastic?...
I bent a piece of wire, and covered it with a bit of vacuum line...
(trick is finding the right stiffness of wire... I got this from a wire dvd rack)...
Just the first prototype,.. I'll probably try for a prettier one later...
...