4 Stroke Kit Recommendations

[Shambopyro]

Hello All,

I'm looking to motorize a bicycle with a 4 stroke 49cc engine. Can anyone recommend a specific kit or seller? I've been looking at ones from livefast motors, gasbikes, bicycle-engines, and several other websites, but there does not seem to be an overwhelming amount of information about these. My main concern is reliability and long term durability.

Thanks

 

[bakaneko]

Most kits come with the HS-142f engine so the discussion really focuses on the mount and transmission. The 4G is best due to the belt transmission and gear reduction but cost the most. I would go with the 4G and bicycle-engines has a good reputation but they might be back ordered. Chain is okay but you will have to replace or fix it as the chain stretches.