Wiseco PK1577 GP Series 2-Stroke Piston Kit 54mm for Honda CR125R

The Wiseco PK1577 is a GP Series 2-stroke forged piston kit designed for the 1998–1999 Honda CR125R at a 54mm bore diameter (762M series). Built on the proven foundation of the Pro-Lite, the GP Series adds a suite of performance and durability coatings that make it an ideal choice for sustained-RPM riding and competitive racing.

Key Features:

• Electra-Coated Crown, Ring Grooves & Pin Bores — Resists wear, combustion heat damage, and ring micro-welding for extended service life
• ArmorGlide Skirt Coating — Advanced friction-reducing coating allows tighter piston-to-bore fitment, improving ring seal, reducing piston rock, and maximizing horsepower
• Forged from High-Silicon Aluminum Alloy — Superior strength-to-weight ratio delivers instant throttle response and maximum torque output
• Computer-Engineered Skirt Profile — Minimizes cylinder wall friction for optimized performance and longevity
• Engineered, Forged & Machined in the USA — Manufactured at Wiseco's facility in Mentor, OH
• 54mm Bore Diameter — Part of the 762M bore series, suited for overboring or standard replacement

Kit Includes:

• Forged piston
• Ring set
• Wrist pin
• Circlips

The Wiseco GP Series piston kit delivers the performance and endurance demanded by motocross competitors and hard-riding enthusiasts alike. MPN: PK1577 | Bore: 54mm | Series: 762M