TKRJ Yamaha RD 350YPVS Piston KIT 1.25 AY0965X

The Yamaha RD 350YPVS is a 2-stroke icon that demands precision at high RPMs. When it’s time for a top-end rebuild, settling for anything less than perfection can lead to power loss or catastrophic failure. The TKRJ Piston Kit (1.25mm Oversize) is crafted in Japan to meet and exceed OEM standards, providing the perfect balance of lightweight performance and industrial-grade durability.

Why TKRJ is the Trusted Choice for RD Enthusiasts:
Japanese Precision Engineering: TKRJ is world-renowned for manufacturing pistons that mirror the thermal expansion and weight characteristics of original Yamaha factory parts, ensuring a "factory-fresh" feel.

1.25mm Oversize Tuning: Specifically designed for cylinders that have been bored out to clean up wear or increase displacement. This kit allows you to extend the life of your original cylinder blocks with absolute confidence.

Advanced Material Composition: Forged from high-silicon aluminium alloy, these pistons offer superior resistance to the extreme heat and friction generated by the YPVS (Yamaha Power Valve System) engines.

TiN (Titanium Nitride) Coated Rings: The kit includes premium rings often featuring specialized coatings to reduce friction during the critical break-in period, ensuring a perfect seal and long-term compression.

Thicker Skirt Design: Unlike some racing pistons that sacrifice longevity for weight, TKRJ pistons feature reinforced skirts to withstand the high-frequency vibrations of a high-revving 2-stroke twin.