+3mm Big Bore Kit Makes it a 269cc

• Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders
• Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise
• Nickel Silicon Carbide plated for long life
• Kits come complete with gaskets, cylinder, piston, rings, pin and clips
• Honed to exact size for easy piston installation
• Big bore cylinders do not require machine work (unless noted)
• Made in the U.S.A.

Compression Ratio: 12.5:1
Bore: 80mm

Replacement Big Bore Cylinder: MFG No. 21002
Replacement Big Bore Piston Kit: MFG No. 21002-P01
Replacement Big Bore Piston Rings: MFG No. 21002-R01
Replacement Big Bore Gasket Kit: MFG No. 21002-G01

(1) Cylinder
(1) Base gasket
(1) Engine case gasket
(1) Exhaust gasket
(1) Head gasket
(1) Piston
(2) Cir-clips
(1) Wrist pin
(1) Top ring
(2) Oil rings
(1) Oil spacer
Instructions