automatic

A while back I tried to build a 2 speed manual trans for my 79cc bike, I have since scrapped the idea. I want to build a 2 speed auto instead, but I really have no idea how to go about doing it. I have seen pictures of them made using 2 centrifugal clutches, but don't know how to do this. Can...

Hey folks I've been feeling it lately, that "builder's itch" or whatever you want to call it.. the need to start a new bike. After doing my cruiser up I wanted to do another one, so I've kept an eye on CL etc for a frame to start from. I found this one, the seller wanted $200 but he accepted...

Hi all, long time listener first time caller here. So my bike has a 4-stroke hua sheng 49cc engine with the centrifugal (automatic) clutch. Today I was riding and something happened with the clutch so that it changed to being permanently engaged. I would appreciate any advice as to a fix. I...