Need new motors? break a chain? brakes not work? swapping out pinions or sprockets?

Moderators: robnewyork, bassiclyLouDog, gameboy

By whiteggs
Looking for a >90T and <10 in. outside diameter to replace the stock 70T sprocket of a Velocifero Mad scooter.
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According to the Kelly diagram, I also needed a 2A[…]