Review of a 2018 Genuine RH 50 cc scooter. Specs: Engine 49.7cc 2Stroke, AirCooled.Transmission Automatic (CVT)Mileage 100+ MPG†Dry Weight 198 lbs.Top Speed 40+ MPH.Tire Size F: 120/7012 R: 130/7012.Braking Front Hydraulic Disc; Rear Drum.