Features: 1. A complete engine kit for converting your bike 2. Heavy duty metal engine body for added durability 3. Super fuel-efficient, only consuming 2.5 litre fuel per 100km 4. Maximum safe speed is 38km/h 5. Comes with all needed hardware for easy installation 6. Fit for most type 24" and 26" bikes, such as mountain bikes, road bikes, cruisers, choppers Upgraded 4 bolt Chain Tension bracket and U Bolt Mount included.