Grom 170cc Big Bore Kit W/4-Valve Cylinder Head

Features:

• Koso ceramic coated big bore cylinder kit forged w/4-valve piston and gaskets
• Koso 4-valve cylinder head (complete with camshaft, rocker arms, intake manifold, and all other parts shown in the picture)
• Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available