Upgrade your ride with the Upgraded Pro 100cc Motorized Bike Engine Kit and transform a regular bicycle into a speed-ready, off-road-ready machine.
Powerful 100cc two-stroke, air-cooled engine with a 36-tooth sprocket that lets you propel most 26–28 inch bikes up to 28 mph, turning parks, hills, and roads into more exciting runs.
Long-range fuel and efficiency: with a 0.53-gallon tank, you can enjoy extended rides and fuel usage around 0.66 gal/100 km, reducing mid-ride refuels.
Built for strength: supports up to 440 lbs, so you can ride with confidence on varied terrain.
Complete DIY kit with all required parts and an English manual; it's compatible with most 26–28 inch bikes that have V-shaped or large triangular frames in mountain, road, gravel, or beach setups.
