Wiseco PK1270 Pro-Lite Top End Kit 47.5mm Bore for Honda CR80R

The Wiseco PK1270 Pro-Lite Top End Kit is a complete top-end rebuild solution for the 1992–2002 Honda CR80R, featuring a 47.5mm (0.50mm over standard) bore using the legendary Pro-Lite forged 2-stroke piston platform. Made in the USA, this kit delivers everything needed to restore or upgrade the top end of your CR80R with race-proven components.

Kit Includes:

• Pro-Lite Forged Piston — CNC machined from aerospace-grade aluminum alloy for a superior strength-to-weight ratio and optimized cam shape for peak horsepower and service life
• High-Performance Ring Set — Engineered for extended service life and sustained power output
• Alloy Wrist Pin — Precision machined for consistent fitment, strength, and reduced friction
• Circlips — Included for complete assembly
• Wiseco Top End Gasket Kit — Premium materials exceed OEM sealing standards for a reliable, leak-free rebuild
• Top End Needle Bearing — High-quality bearing for smooth, low-friction small-end operation

Pro-Lite Construction Highlights:

• Dedicated forgings utilizing aerospace aluminum alloy for an optimal strength-to-weight ratio
• CNC machined piston profile for precise cam shape and peak power delivery
• Horizontal slot-pin oiling reduces friction and provides scuff resistance
• Pressure seal groove maximizes ring seal and combustion efficiency
• Race-proven designs trusted by top teams across Supercross, Motocross, GNCC, and more

The Wiseco Pro-Lite is the forged 2-stroke piston that defined a category — combining decades of motorsport engineering with all-purpose reliability. This kit is ideal for routine top-end rebuilds or performance refreshes on the 1992–2002 Honda CR80R. Note: Cylinder boring to 47.5mm is required.