Motorized Bicycle Engine Kit Forum

guy gave me a 21 speed next aluminam bike its has a v frame and i was gonna put engine i have on my cheap walmart bike on it but it doesnt fit any ideas

https://www.bikeberry.com/gas-engine-kits/bbr-tuning-38cc-4-stroke-rear-axle-engine-kit.html

I saw this on another website and was wondering about it. Looks really easy to mount and you don't need a chain tension devi...

Hello guys this is my first post I have a old ccm bicycle frame that i mounted the spring to the back of the seat post so my engine will fit. I’m not sure the exact type of my engine honeslty since I’ve kept the same engine since I started building bikes but it has many upgrades and after I upgrade the CDi there’s not much I can do engine wise to give a perspective of how unstoc...

Here is the results of years of collecting parts and building it in my free time. I'll be posting more pictures. I'll explain what I did as I post the pictures. Basically I built this with found or collected parts with minimal cash. I spent less then 200 on parts/supplies. This runs very well with a top speed of about 40mph. It's geared well enough that I don't even need to peda...

Hi folks....

....from a new forum member located in the UK. I just finished up construction of my first ever motorized bicycle build over last weekend - so I thought I'd join this forum and maybe post some photos showing how my INDIAN Board Tracker tribute bike turned out.

Truth be told, I was mainly inspired by the quality and look of the Sportsman Fl...