I'll start this off with a disclaimer: I don't own a super x-ped. I own a Goped Sport Liquimatic; great scooter by the way. No I don't own one but I've spent a lot of time riding this model and I must say as a stock scooter it's not necessarily significantly faster than the sport but man it is more solid than any motorcycle I've ever ridden let alone goped! There is no rattle, vibration or flex over bumps and it is worlds better for racing than any scooter I've ever ridden making it the top choice for hard tire gopeds!