Wiseco Piston Kit - 97.00 Mm - Yamaha Yz450F/Fx | Wr450F Re825M09700

• R&D developed to provide dyno-proven power gains • Asymmetric skirt design for improved wear and even loading on major thrust skirt • Precision fit ring; custom-lapped compression ring for improved power • 100% billet machined for superior strength-to-weight ratio and optimized fit • High compression (14:1 for 450cc, 14.5:1 for 250cc) for maximum torque and throttle response • Dome design improves flame travel to maximize air/ fuel burn efficiency • DLC-coated piston pin reduces friction and improves scuff resistance • Enhanced pin oiling for improved lubrication and reduced friction • Pressure seal groove reduces ring lifting and power loss • ArmorGlide® skirt coating reduces friction for quieter operation, improved scuff resistance • Pistons include rings, pin, and circlips - Yamaha YZ 450 F (2021, 2022, 2020); Yamaha YZ 450 FX (2023, 2021, 2022); Yamaha WR 450 F (2023, 2021, 2022)