Wiseco REP825M09700 Racer Elite 4-Stroke Piston Kit 97.00mm Bore YZ450F

The Wiseco REP825M09700 Racer Elite Piston Kit is a premium forged piston kit engineered for the Yamaha YZ450F, delivering the strength, precision, and durability that serious motocross and off-road riders demand. Featuring a 97.00mm bore diameter, this kit is purpose-built for the YZ450F's high-revving, high-load 4-stroke engine environment.

Key Features:

• 100% Billet Machined Construction – Delivers superior strength-to-weight ratio and an optimized fit for each specific engine application
• ArmorGlide Skirt Coating – Wiseco's proprietary skirt coating reduces friction, minimizes wear, and contributes to measurable horsepower gains
• Optimized Dome Design – Improves flame travel to maximize air/fuel burn efficiency and combustion performance
• Dedicated Forging – Each piston uses aerospace-grade aluminum alloy for improved tensile strength, reduced weight, and superior heat transfer compared to cast alternatives
• Pressure Seal Ring Grooves – Engineered for maximum ring seal and optimal compression retention
• Chrome-Plated Piston Pin – Included for durability and reduced friction at the wrist pin
• Horizontal Slot Pin Oiling – Ensures consistent lubrication at the pin bore under hard use
• Complete Kit – Includes the forged piston, high-performance piston rings, wrist pin, and circlips for a full rebuild
• Engineered and Manufactured in the USA – Designed, forged, and machined at Wiseco's facility in Mentor, OH

Wiseco's Racer Elite line represents the pinnacle of the brand's piston technology, developed through rigorous in-house dyno testing and refined for the demands of competitive racing. The REP825M09700 is the ideal replacement piston kit for riders looking to restore or improve performance during a top-end rebuild.