The 50cc scooter I had topped out at 35mph. I heard that anything 50cc or under was restricted to 35mph, but at the same time, I’ve seen many 50cc scooters achieve 45-50mph. while speed is desired, torque is really the most important thing, since torque usually equals better acceleration. this is typically achieved by a combo of the engine and transmission used on the scooter. my scooter had the old chain and sprocket attached to a centrifugal clutch which didnt provide enough torque to get me up the many hills I live in and around. the higher end scooters have whats called a cvt transmission, (Continuously variable transmission) which constantly applies the right amount of torque to the wheel, allowing you to get up some steep hills. as for makes, I would recommend vento scooters. they make some nice scooters both in looks and performance..
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