Price last checked Nov 4, 2026. It may have changed, so confirm on the store's page. We earn a commission on purchases (details).
5G 4-Stroke bicycle engine kit offers: 2-3 HP (horse power) 20 to 25 mph depending on the gear ratio and weight. Fuel Economy: MPG 100-150 miles per gallon Oil Capacity: 250 mL (~8.45 oz) 1. HUASHENG Tuning 2014 5G 4-Stroke Centrifugal Transfer Case (6:1 Gear Ratio) 2. HuaSheng 49cc Pull Start Bicycle Engine 3. High Performance Low Profile Carburetor Disclaimer: Operating a bike, motorized bicycle or bike with a bicycle engine kit installed involved some risk of serious bodily injury. Buyer accepts responsibility for any and all vehicle operations that may lead to personal injury, economic loss, social distress, other losses, costs and damages. Seller is not responsible for injuries and/or damages resulting from operating this motorized bicycle or bicycle engine kit. Seller is not responsible for misuse of this kit or any warranty after installation. Not all motorized bicycles are allowed on road use. We make no guarantee as to the road legality of the bicycle engine kits. The risks that the Seller, Niche Webstores Inc. is not responsible for include among other things: falling, collisions with pedestrians, street, highway or roadway vehicles, striking obstructions or other person, unsafe weather conditions including temperature exposure, hypothermia, sunstroke, sunburn, heat exhaustion and dehydration. .