From the Super Mario Wiki
The Zipper is Waluigi's second standard kart from Mario Kart DS. It is a Chopper-styled motorcycle. The kart is well-balanced. It is the first bike-like vehicle to appear in the Mario Kart series, though it is treated like a kart. The Zipper has the same speed as the Standard DS, the same handling as the B Dasher, Light Dancer, Brute, Standard WR, Light Tripper, Dragonfly and Standard PC and the same weight as the B Dasher, Streamliner, Standard WL, Standard DK, Royale and Brute.
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