Naraku Performance Cylinder for 100cc AC Minarelli

Naraku 113cc Air Cooled Minarelli Big Bore Cylinder Kit. Kit includes cylinder, 55mm piston, piston rings, 14mm piston pin, cir clips, head gasket, base gasket and exhaust gasket.When used in conjunction with a stock crankshaft the total displacement comes out to 113cc. Fits the following models with 100cc 2-Stroke Minarelli engines: Aprilia: Scarabeo 100 Benelli: K2, Naked 100 MBK: Booster, Nitro, Ovetto 100 Yamaha: Aerox, Neos, BWS 100 *You may need to modify your engine case to accommodate the larger cylinder. Please see our Warranty & Returns Policy. Upgrades to 113cc Cylinder Bore: 55mm Cylinder Sleeve Outer Diameter: 59.2mm  Wrist Pin Diameter: 14mm Cylinder Stud Spacing (Diagonal): 75mm Exhaust Port Diameter: 26mm Exhaust Stud Spacing: 48mm Overall Height of Cylinder: 85mm