Description
M24810010002
DOT Approved: Yes
better heat resistance
largeframe
Replacement rings for the PINCK4 cylinder kit for Vespa 50
Naraku QMB139 47mm 72cc Performance Cylinder Kit OEM NIU Parts M24810010002Naraku 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. Upgrades to 72cc Cylinder Bore: 47mm Cylinder Sleeve Outer Diameter: 53. 1mm Wrist Pin Diameter: