Honda XR80 Piston Kit - Wiseco - 9.71 CR, 48.50 mm Bore - `79-`03. A purpose-built replacement piston kit from Wiseco designed for XR80 applications, offering forged construction and factory-oriented fitment for riders restoring or modifying older Honda 80cc four-stroke engines.

This Wiseco kit is engineered for tight tolerances and durability. The forged 4-stroke piston material improves tensile strength for longer service life while maintaining an optimized strength-to-weight ratio. Each kit is made for specific engine applications and includes the hardware needed for a proper rebuild. Components are engineered, forged, and machined in the USA (Mentor, OH), and the kit is suitable for owners seeking reliable OEM-style performance or a dependable foundation for modest tuning.

Features

• 48.50 mm bore piston, 9.71:1 compression ratio
• Forged 4-stroke piston for improved tensile strength and durability
• Includes piston rings, wrist pin, and circlips for complete installation
• Built to tight tolerances, application-specific design
• Engineered, forged, and machined in the USA (Mentor, OH)

If you have questions about fitment, compatibility, or installation, call us directly — we’re happy to help. We offer installation and customization services at our two service locations in Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to speak with a technician or schedule service.

If you are considering purchasing multiple items, contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov