Yamaha YZ85 Piston Kit - Wiseco - Racers Choice 2067CS ('93-'19) is a high-quality replacement piston kit engineered for sustained high-RPM 2-stroke use. This Wiseco GP Series-based kit delivers durable construction and components needed for competitive riding and heavy use.

Built with Wiseco's GP Series technology, the kit features Electra-Coated surfaces and a low-friction skirt treatment to resist wear and reduce internal friction. The piston undergoes extra lightening operations to improve throttle response while maintaining strength for endurance riding. Forged and machined in Mentor, OH, the package includes quality rings, wrist pin, and circlips for straightforward installation and dependable service life.

Features

• Electra-Coated crown, ring groove, and pin bore to resist wear and combustion-related damage
• ArmorGlife skirt coating to reduce friction and optimize performance potential
• Designed for endurance and sustained high-RPM 2-stroke riding
• Extra lightening operations for improved throttle response
• Forged and machined in the USA (Mentor, OH); includes rings, wrist pin, and circlips
• Oversize +5; Bore: 52.50 mm

If you have questions about fitment, installation, or choosing the right parts, call us directly — we’re happy to help. We offer installation and customization services at both our Austin, Texas and Los Angeles, California area locations. Call Austin: 512-982-9393 (TX) or Los Angeles area: 562-981-6800 (CA). If you are considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

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