Yamaha YZ250F Piston Kit - Wiseco - Racers Elite, 14.5:1 CR, Bore 77.0mm ('16-'18) is a high-compression replacement piston kit engineered for riders who want reliable, race-capable components for their YZ250F (2016–2018). This Wiseco Racers Elite piston brings a performance-oriented design without compromising fit or durability.

Built from 100% billet material and machined for precise tolerances, this piston kit features a dome design that improves flame travel to promote efficient air/fuel burn. The 14.5:1 compression ratio and 77.0mm bore match the listed specification for standard bore applications on the '16–'18 YZ250F. Wiseco’s Racers Elite line focuses on strength-to-weight optimization and consistent ring seating to support aggressive riding and race environments while maintaining OEM compatibility.

Features

• 100% billet machined construction for strength-to-weight balance
• Dome design to improve flame travel and combustion efficiency
• 14.5:1 compression ratio matched to 77.0mm bore (STD)
• Designed for Yamaha YZ250F models 2016–2018
• Includes piston, rings, and wrist pin components as specified by kit

If you have questions or want help confirming fitment, call us directly. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for assistance, appointment scheduling, or technical questions. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

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