Wiseco PK1276 Top End Piston Kit Honda - 55.0mm XR100

The Wiseco PK1276 is a complete top end piston kit engineered for 1981–1991 Honda XR100 engines. This kit delivers everything needed for a thorough top end rebuild or overbore service, combining Wiseco's renowned forged piston technology with all supporting components in a single package.

Key Features:

• Forged Piston: 55.0mm (4666M) bore size, manufactured from high-strength forged aluminum for superior durability and heat resistance over OEM cast pistons
• Piston Rings: Precision-fit rings included for proper sealing and compression
• Wrist Pin: Heavy-duty wrist pin included for a complete rotating assembly rebuild
• Circlips: Retaining circlips included to secure the wrist pin in the piston
• Top End Gasket Set: Full gasket set included to ensure a proper, leak-free reassembly

Wiseco forged pistons are crafted using a cold-forge process that aligns the grain structure of the aluminum, resulting in a stronger, lighter piston compared to cast alternatives. This makes the PK1276 an ideal choice for both routine rebuilds and performance-oriented overbore applications on the Honda XR100.