Naraku QMB139 47mm 72cc Performance Cylinder Kit bowl 523 cylinder head castings Piaggio

523 cylinder head castings Piaggio Scooters 50cc water cooled

The factory-molded white sidewalls resist yellowing and weathering

or alternative application is prohibited by law

this tire features integrated interior hollow core windows

Naraku QMB139 47mm 72cc Performance Cylinder Kit bowl 523 cylinder head castings PiaggioNaraku 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: