63cc cast iron cylinder kit from Polini for 39.7mm stroke suitable for Yamaha Chappy 50cc or Mokick LB 50.
The cylinder has a bore of 45mm and, according to the manufacturer, achieves an output of 6 hp at 7,100 rpm.
The cylinder has a bore of 45mm and, according to the manufacturer, achieves an output of 6 hp at 7,100 rpm.
