56MM CYLINDER PISTON GASKET KIT FOR YX 140cc 150cc PITBIKES PIT BIKE YX140 ZS140 Material: Aluminum cylinder with cast iron jacket and anodized piston Product Type: Cylinder piston gasket kit Design and Style: Performance engine components Usage and Purpose: Rebuild end for pit bike bikes Typical Adaptive Scenario: Improved compression for YX 140cc engines Shape and Size: Cylinder bore size: 56mm, Piston pin diameter: 13mm Performance and Property: Includes all gaskets for a complete rebuild The 56MM CYLINDER PISTON GASKET KIT is designed for rebuilding the end of YX 140cc and ZS140 pit bike engines.The cylinder is constructed from aluminum with a cast iron liner, providing efficient heat dissipation and under operating conditions.The anodized piston features a 13mm steel wrist pin and is paired with a performance piston ring set to enhance sealing and power output.This kit includes all necessary components for a full end rebuild, such as the cylinder, piston, piston rings, wrist pin, circlips, cylinder base gasket, head gasket, and valve stem seals.It is engineered to fit models equipped with the 1P56FMJ engine type and ensures proper dimensional accuracy with a 56mm bore.Installation is designed to be straightforward for experienced users.The kit supports improved engine compression and consistent performance for off-road applications.Compatibility is limited to 140cc and 150cc pit bike engines based on the YX and ZS140 platforms and is not intended for use with 125cc engines.