This bore up kit is for those who are equipped with SP Takekawa sports camshaft.
This bore up kit allows you to change the displacement from normal 124cc to 143cc by changing the cylinder and piston.
By simultaneously attaching the FI Con 2 (injection controller) to achieve torque-full output characteristics unlike normal.
The cylinder adopts an aluminum iron sleeve cylinder.
The surface of the cylinder is painted with a black paint that is similar to normal.
Molybdenum coat is applied to the piston skirt for a better initial fit.
Compression Ratio: 11.0:1, Bore Diameter 2.2 inches (56 mm), Stroke 2.3 inches (57.9 mm) (Normal)