Probably one of the first transmission mods you should do to your Honda Ruckus/Metropolitan. You can see 50mph on your Honda Ruckus with this kit! With the right tuning of course. Comes with a full set of roller weighs for your fine tuning needs. Higher weights, more top speed. Lighter weights, faster acceleration.
Honda Ruckus Polini Variator Speed Kit
For Honda Ruckus/Metropolitan