Honda XR80 Piston Kit - Wiseco - 9.7:1 CR - `79-`03. A forged replacement piston kit designed for Honda XR80 4-stroke engines from 1979–2003. This complete kit includes the piston, wrist pin, rings and circlips for a straightforward install.

The Wiseco Forged Series piston is engineered for durability and service life in small-displacement 4-stroke machines. With a 49.00 mm bore and a 9.7:1 compression ratio, this piston matches stock dimensions and supports mild performance or restoration builds. Forged aluminum construction improves strength and fatigue resistance compared to cast designs, while the included hardware eliminates the need to source separate parts. Suitable for enthusiasts who want a reliable, rebuild-ready piston that stays within expected OEM fitment and tolerances.

Features

• Forged aluminum piston for improved strength and durability
• 49.00 mm bore size, 9.7:1 compression ratio
• Complete kit: piston, wrist pin, rings and circlips included
• Fits Honda XR80 models 1979–2003
• Designed for 4-stroke applications and mild performance builds

If you have questions or need fitment advice, call us directly — our parts specialists can help. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA). We install on premises at both locations. If you are considering purchasing multiple items, contact us for shipping discounts.

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