Application This Product Is Suitable for Most 26-Inch or 28-Inch Bicycles with V-shaped Frames and Large Triangular Empty Frames, Such As Mountain Bikes, Road Bikes, Gravel Bikes, Beach Bikes, Etc. Specifications Displacement: 100cc Number of Teeth: 36 Mode of Engine: Single Cylinder, Air-cooling, 2-Stroke Ignition Mode: Cdi Maximum Speed: 45km/28mi/H Fuel Tank Capacity: 2l/0.53gal Fuel Consumption: 2.5l/0.66gal/100km Max. Load Capacity: 200kg/440lbs Noise: About 75 Decibels Fuel Number: #92, #95 Fuel Type: Mixed Fuel(16 Gasoline: 1 Two-stroke Engine Oil During Break-in Period, 20 Gasoline: 1 Two-stroke Engine Oil After) Package Included 1*Bicycle Engine Kit 1*English Manual All Accessories for Assembly.