70cc cast iron sports cylinder kit from Polini for horizontal air-cooled Minarelli engines with 10mm piston pin and original 25km/h approval.
With this cylinder the original 25km/h approval is no longer required!
The cylinder has a bore of 46mm and, according to the manufacturer, achieves an output of 7.5 hp at 10,500 rpm.
With this cylinder the original 25km/h approval is no longer required!
The cylinder has a bore of 46mm and, according to the manufacturer, achieves an output of 7.5 hp at 10,500 rpm.
