Stage 6 15/42 up gears for Chinese Minarelli scooters CPI Keeway bearing

Stage 6 15/42 up gears for Chinese Minarelli scooters CPI Keeway bearingTaller gears in the transmission reduce the overall reduction factor of the gearbox. If the engine is powerful enough to pull the taller gears, this modification will also raise top speed. The original gears in some models are quite short; this is where you can gain some MPH even with original cylinders. Different from common gear units, the ones from Stage6 come pre pressed and are available at an unbeatable price. Simply replace the old gear unit

It has been developed and optimized for use with Stage6 SportPro/ Streetrace or similar 70cc sport cylinders

YE Evolis 50 (92-95)

Yamaha YE ZEST 50 - Scooter

PIAGGIO PIAGGIO NRG 50 2T LC

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you will start to lose some of your bottom end acceleration

Drive belt

Designed to go hand in hand with Polini's  bad ass ceramic coated rear pulley

Yasuni R  for Minarelli Horizontal engines

tapering from 28mm to 26mm

SS49 50cc 2-stroke

Forward and reverse drive direction