Description Perhaps you are an outdoor enthusiast who enjoys cycling in parks or mountains, and ordinary bicycles can no longer meet your need for excitement. Let's take a look at our bicycle engine kit! Through installation, it can give your bicycle the speed and excitement of a motorcycle, allowing you to go further in one ride and explore stunning scenery that you have never seen or experienced before! Take our bicycle engine kit home and embark on a more exciting outdoor cycling experience! Key Features Durable & Sturdy: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with rust prevention shot blasting process, and a rubber and nylon belt offer corrosion-resistance and wear-resistance, achieving a max bearing capacity of 440 pounds and ensuring superior.