Top Racing Jasil 13/43 up gears for the 2002-2011 Yamaha Zuma
Top Racing 13/43 Up gears for the 2002-2011 Yamaha Zuma, the nice thing about these gears is they come pre pressed making your install a little smoother.
Changing you gear ratio is one of the best ways to increase your top speed and lower your RPM's at cruising speed.
13/43 are rated 21% higher than stock gearing
