A warning to those looking to mod their motorized bicycles:

Most, if not all, of the hacks and mods featured on this site were made by individual hobbyists. If you are new to working with 2-stroke bicycle engines, please by aware that there's a possibility that a mod featured on this site could seriously damage your engine. Please don't try any mod from this or any other site unless you fully understand what you are doing. The owner of this blog will not be held responsible for both material and bodily damage caused by performing a modification featured on this blog. Also remember that opening up your engine may void your warranty!

Saturday, November 26, 2011

Spring-loaded tensioner for $3

This tensioner mod is one of the most elegant I've ever seen!  Simple enough, and I believe this is the only one I've seen that doesn't rely on more than one point on the bike frame.  This is the kind of tensioner that should come with the kits.


  1. Do you have another link, that one didn't work. Sadpanda dot us is good for hosting pictures a long time.

  2. This is a one off custom bike that we are donating part of proceeds to the Jeans for Justice Cause. Call us for more information.

    Motorized bike builder

  3. Could you tell me where or how to get parts? Or what hardware is marketed for..ie..door hardware..pulleys and springs.where could I find the stuff... Veanermin@gmail.com