Basic thumb throttle lever/handle

thingiverse

This basic throttle lever is designed to be mounted securely on any handlebars. The main "hole" is 21mm in diameter, and you can easily scale up the model to fit your handlebar's unique size. Personally, I found it necessary to re-drill the center hole with a lathe, so be aware that some minor adjustments may be required for an optimal fit. I strongly prefer this throttle lever over rotating grip designs because they put control in your hands exactly where you need it. In high-pressure situations like wheelies or tight turns, gripping the speed controller can be extremely hazardous. This design solves that problem perfectly! Some potential improvements could include cable adjustment features, a neutral position stop, or enhanced handlebar fixation options. Feel free to modify and remix this design as you see fit! To make modifications easier, I've provided the SolidWorks files for your use. Check out how it looks on my mini bike in action: https://www.youtube.com/watch?v=NRXT-G2S9V4&t=323s