Mini Bike can be enjoyed by kids and adults alike. Featuring high quality frame construction and aggressive European-inspired looks, the 50RR is sure to turn heads. Engine: 47cc Single Cylinder 2-stroke, Air Cooled Maximum Speed: varies on sprocket / default 37 mph. Transmission: Centrifugal Automatic (Chain Drive) Brakes: Front and Rear Slotted Discs Tires: High Traction Racing Tires 90/65-6.5 Front, 110/50-6.5 Rear Gas Tank: 1 Liter Fuel: Unleaded Premium Gas with premix 2-stroke oil Oil: 25:1 break-in, 32-50:1 after, 2-cycle air cooled Cruising Range: 20 Miles Per Tank Exhaust: Dual exhaust Wt. Capacity: 260 lbs Seat Height: 18 inches Dimensions: Net: 49lbs, Gross: 51lbs, 40"L x 13"W 23"H