【Main Parameters】Cylinder Numbers: Single cylinder; Gas-oil Mix Rate: 25:1; Bore: 44mm; Start Way: Recoil pull start; new style recoil,easy to pull start; Cooling: Air forced cooling; Sprocket Size: 14 teeth fit T8F chain; Spark Plug Size: L7T L7TC

【Complete Set】The bicycle engine kit is compelte with high performance cylinder head, plug, powder coated metal pull start, air filter and 14mm carburettor,balanced crank, balanced flywheel, ported piston windows, uprated cvt transmission unit.

【Premium Performance】49cc engine, easy to reach speed up to 40mph according to your weight and terrain. Unleash your inner speed whether on the street or on an off-road adventure.

【Widely Applicable】This engine set can be widely applied to a variety of small vehicles, including 2-stroke pocket bikes, mini buggies, ATVs, and scooters. Whether you are roaming in the city or traveling in the mountains, you can easily handle it!

【Quality Assurance】We have a strict quality assurance system, and products are tested before they are put on the market. If you encounter any problems, we will provide the best service and give you the most satisfactory answer!