Their actually really solid bikes. Steve (of Janus) has an Avanti Autopower and it's the fastest moped in town. It goes faster stock than my puch goes with a Biturbo. The SS should be even faster because they come stock with expansion pipes. He hasn't needed parts for it yet, so I can't tell you how easy it is to find parts, but since they're newer mopeds, I'm sure the dealer can get parts.