Wiseco PK1955 Pro-Lite Forged Piston Kit for Powersports

The Wiseco PK1955 is a Pro-Lite forged piston kit engineered for powersports applications. Wiseco's PK-series kits are built from race-proven designs trusted by top race teams across Supercross, Motocross, GNCC, and Superbike competition, delivering the performance and reliability demanded by both competitive racers and recreational riders.

Key Features:

• Dedicated Aerospace-Alloy Forging: Each piston is forged from high-silicon, low-expansion aluminum for superior strength-to-weight ratio, improved heat transfer, and longer service life
• CNC Diamond-Turned Finish: Precision machined on CNC-controlled turning centers for a consistent, accurate finish with no size variation
• High-Performance Ring Kit Included: A premium ring set is included for extended engine life and sustained power output
• Alloy Wrist Pin Included: A high-quality alloy pin ensures consistent, reliable piston alignment and smooth operation
• Circlips Included: Secure-fit circlips keep the wrist pin properly retained during operation
• Compatible with All Modern Bore Compositions: Designed to work with cast iron, chrome, Nikasil, and boron composite cylinder bores
• Complete Top-End Gasket Kit Included: PK-series kits include a full top-end gasket set for a comprehensive rebuild solution

Wiseco piston kits are engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH. Each kit is built to the tightest tolerances for the ultimate combination of performance, strength, and durability. A detailed installation guide is included to support proper assembly.