Piston Kit - 77.00 mm - Yamaha YZ250F/FX | WR250F
The WISECO RE812M07700 piston kit is engineered to deliver reliable, dyno-proven power gains for Yamaha YZ250F, YZ250FX, and WR250F models. Crafted with precision, this piston features an asymmetric skirt design that enhances wear resistance and ensures even loading on the major thrust skirt, contributing to increased durability and consistent performance. The kit includes a custom-lapped compression ring that optimizes sealing and improves power output, making it ideal for high-performance applications. Constructed entirely from billet aluminum through a meticulous machining process, this piston offers an exceptional strength-to-weight ratio and a precise fit, which are essential for demanding riding conditions and high-revving engines.
Features:
- Asymmetric skirt design for improved wear and load distribution
- Custom-lapped compression ring for enhanced sealing and power
- 100% billet machined construction for superior strength and fit
- High compression ratios (14:1/14.5:1) for maximum torque and throttle response
- Dome design to improve flame travel and combustion efficiency
- DLC-coated piston pin for reduced friction and scuff resistance
- Enhanced pin oiling for better lubrication and longevity
- Pressure seal groove to reduce ring lifting and power loss
- ArmorGlide® skirt coating for quieter operation and improved durability
- Includes rings, pin, and circlips for complete installation
US Dollars
