Naraku 47mm 72cc Performance Cylinder Kit

Naraku 50cc QMB139 4-stroke 47mm Big Bore Cylinder Kit. Kit includes cylinder, piston, rings, piston pin, cir clips, head gasket, base gasket, exhaust gasket and cam chain tensioner gasket. This is a drop in cylinder kit, no crank case modifications required! When used in conjunction with a stock stroke of 41.4mm the total displacement comes out to 72cc. Please see our Warranty & Returns Policy.
Upgrades to 72cc
Cylinder Bore: 47mm
Cylinder Sleeve Outer Diameter: 53.1mm Wrist Pin Diameter: 13mm
Total Piston Height: 34.1mm
SUPPORTED MODELS: QMB139 50cc/49cc , Various unlisted makes/models