■ S-Stage Bore Up Kit
This bore-up kit allows you to increase the engine displacement from the standard 110cc to 125cc by replacing the cylinder and piston.
The cylinder features an aluminum construction with a cast iron sleeve for enhanced durability.
■Sports camshaft
Maximizes the performance potential of the stock cylinder head.
The kit includes a piston for the stock cylinder head, a cylinder, a sports camshaft, and a set of gaskets.