Carburetor – 12mm, PW50, Yamaha Pewee 50 / 80A1120
20 January 2019
Cylinder Head Assembly – Big Bore, CNC, Dual Valve, Pocket Bike, 49cc, Air Cooled / 20P8490BU
21 January 2019

Cylinder Head Assembly – 44mm, Big Bore, Pocket Bike, Blue / 20P8440BU


44mm ‘big bore’ cylinder & piston kit for pocket bike. 44mm big-bore kit for ’47cc’ chinese import pocketbikes with case reed inducted engine. For example, stock bore on the ’47cc’ engine is 40mm – meaning with the stock 32mm stroke, the engine size is actually approximately 40.2cc. This kit will increase your displacement to a much more powerful 48.7cc.