Polini Corsa 70cc Racing Cylinder Kit: Zuma, RH & Buddy 50 windproof Pulley is ISO 9001 certified

Pulley is ISO 9001 certified

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CRITICAL MODEL EXCLUSION: This kit WILL NOT fit newer fuel-injected Honda Metropolitan NCH50 models (2013–present) due to changes in crankshaft dimensions

Not only do you get better stopping power with this caliper

Handlebar Diameter: 7/8 Inch (22mm)

Polini Corsa 70cc Racing Cylinder Kit: Zuma, RH & Buddy 50 windproof Pulley is ISO 9001 certifiedMid Race Performance: Polini Corsa 70cc Iron Cylinder Step up to "Mid Race" power with the Polini Corsa Cylinder Kit. While based on the legendary Polini 70cc Sport, the Corsa is factory tuned with revised port timing and a polished exhaust port to deliver significantly more horsepower and higher RPM ceilings. This cast iron kit combines the bulletproof reliability of a daily driver with the aggressive acceleration required for the track. Technical