WISECO – Piston Kit – 77.00 mm – Yamaha YZ250F/FX | WR250F

Description

Piston Kit – 77.00 mm – Yamaha YZ250F/FX | WR250F

Features

• 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
• Made in the USA