Uprated high performance, high quality 50cc cylinder kit for CPI air cooled mopeds... offers a respectable increase in power over the standard CPI cylinder kit without increasing the 50cc bore size and at the cost of a regular standard replacement cylinder kit!

This is classed as a 'sports' cylinder kit meaning it gives a good performance increase without compromising reliability for everyday use.

Complete with cylinder, piston kit, rings, gasket.

Note this is for 10mm gudgeon pin CPI (up to '03). After '03 you need the 12mm pin version.

Motoforce MF21.19531