Wiseco Piston Kit - 77.00 mm - Yamaha YZ250F/FX | WR250F [RE812M07700]

Manufacturer Part Number: RE812M07700

Parts Unlimited Part Number: 09105076

Product Type: Piston & Ring Kits

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

Bore - Oversize: Standard
Piston Material: Forged 2618 Aluminum
Engine Type: 4-Stroke
Model: Racer Elite Series
Piston Diameter: 76.96 mm
Skirt Coating: ArmorGlide®
Units: Kit
Compression Ratio: 14.5:1
Displacement: 250 cc
Product Name: Piston Kit
Riding Style: Off-Road
Bore Size: 77.00 mm
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