The Polini 70cc Sports Cylinder Kit is a reliable cast-iron kit for the Yamaha Zuma 50cc pre-bug for 1998-2001 models. This can produce up to 9hp with a 10,500 rpm range.
Applications:
Yamaha Zuma 50cc Vertical AC
MBK Booster
Piston Pin 10mm
RACE PART... USE AT OWN RISK. NO WARRANTY ON ANY CYLINDER KITS