Bicycle Motors, Engine Kits, and Accessories is your source for motorized bicycle engine kits and parts. Find parts and accessories for your 2-stroke or 4-stroke bike engine, or browse our complete bike engine kits that included everything you need to get started today! Find the best deals on HuaSheng 49cc 4-stroke engine kits and start your project now. All of our bicycle engine kits run at 150mpg with 2hp. Give us a call at 1-800-514-8435 to see how you can stop peddling.

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Need Replacement Parts?

We offer a full line of replacement parts for all of our engine kits.
Use the categories below to help locate the exact part you need.