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The Vertex Piston Kit for Yamaha WR and YZ450F models features a high-precision 94.94 mm forged piston designed to enhance engine performance and durability. Crafted with a heat-treated T-5 hardening and tempering process, this piston ensures reliable operation under demanding conditions. The piston skirt is coated with a high-tech Molybdenum Disulphite layer, which facilitates faster break-in times and extends piston lifespan. This coating reduces friction and wear, contributing to smoother engine operation and increased efficiency. The forged high-compression piston improves power output and torque across the entire RPM range, making it ideal for both competitive racing and recreational riding. The kit includes a piston, rings, wrist pin, and circlips, providing all necessary components for a complete installation and optimal performance. Engineered by Vertex, a trusted brand in performance parts, this piston kit offers superior quality and consistency for Yamaha WR and YZ450F engines. Whether rebuilding or upgrading, this piston kit delivers increased horsepower, improved engine responsiveness, and long-lasting durability for demanding riding conditions.
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