Wiseco PK1150 Pro-Lite 2-Stroke Top End Kit 48.0mm Bore for Kawasaki KX80

The Wiseco PK1150 is a complete Pro-Lite 2-stroke top end kit designed for the 1998–2000 Kawasaki KX80 at a standard 48.0mm (644M) bore. This all-in-one kit delivers everything needed to complete a proper top end rebuild in a single package, combining Wiseco's forged piston technology with premium supporting components.

At the heart of the kit is a Pro-Lite forged piston, manufactured from aerospace-grade aluminum alloy using a dedicated forging process. The result is an optimized strength-to-weight ratio that translates directly to improved throttle response and sustained performance. Each piston is CNC machined to an optimal cam shape and profile for peak horsepower and maximum service life.

Kit Includes:

• Pro-Lite forged 48.0mm piston (644M bore)
• High-performance piston ring set for extended life and sustained power
• Highest-quality aerospace alloy wrist pin — precision-machined for consistent fit and durability
• Circlips
• Premium top end needle bearing — precision-machined for strength and reduced friction
• Wiseco top end gasket kit — premium materials exceeding OEM sealing standards

Key Features:

• Dedicated forging with aerospace aluminum alloy for superior strength-to-weight ratio
• CNC machined cam shape and profile optimized for peak HP and service life
• Race-proven design trusted by top-level motocross, supercross, and GNCC race teams
• Engineered, forged, and machined in the USA
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions

The Wiseco PK1150 is a bolt-in solution requiring no machining or boring at standard bore, making it an ideal choice for a complete, high-quality 2-stroke top end rebuild on the 1998–2000 Kawasaki KX80.