Pistons - Rings - Cylinders

Ideal engine part to complete Koso's big bore kit Unique four-valve design increases air flow and performance Provides more power and torque Features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves Proper exhaust...

OE Replacement Compatible...

OE Replacement Compatible Vehicles Years Make Make Notes 2002-2007 Honda XR650R

Quality replacement cylinder sleeves give old cylinders new life Centerless grinding of the outside diameters provides for perfect roundness Exact size is controlled by rigid inspection of one-half thousandth of an inch Cylinder resleeving available...

Quality replacement cylinder sleeves give old cylinders new life Centerless grinding of the outside diameters provides for perfect roundness Exact size is controlled by rigid inspection of one-half thousandth of an inch Cylinder resleeving available...

Quality replacement cylinder sleeves give old cylinders new life Centerless grinding of the outside diameters provides for perfect roundness Exact size is controlled by rigid inspection of one-half thousandth of an inch Cylinder resleeving available...

Quality replacement cylinder sleeves give old cylinders new life Centerless grinding of the outside diameters provides for perfect roundness Exact size is controlled by rigid inspection of one-half thousandth of an inch Cylinder resleeving available...

Ports cut to precision dimensions and shapes for ease of installation and port match up Outside diameter precision centerless ground Quality replacement cylinder sleeves give old cylinders new life Inside diameter must be bored and honed to size piston...

Ports cut to precision dimensions and shapes for ease of installation and port match up Outside diameter precision centerless ground Quality replacement cylinder sleeves give old cylinders new life Cylinder resleeving available through vendor Inside...

Ports cut to precision dimensions and shapes for ease of installation and port match up Outside diameter precision centerless ground Quality replacement cylinder sleeves give old cylinders new life Cylinder resleeving available through vendor Inside...

Ports cut to precision dimensions and shapes for ease of installation and port match up Outside diameter precision centerless ground Quality replacement cylinder sleeves give old cylinders new life Cylinder resleeving available through vendor Inside...