The PRO-X Piston Forged Kit is designed for unbeatable performance and longevity in the 2018-2019 Yamaha YZ450F, YZ450FX, and WR450F. It features precision-machined CNC parts, made from high-quality, low-expansion, low-friction piston alloy. With plated cylinders offered in standard and A, B,. sizes, allowing for increased re-boring possibilities and extended cylinder lifespan.
Features of the Pro-X Yamaha YZ65 piston:
The smart solution; save money on engine repairs
Manufactured in Japan and designed as OEM replacements
Forged to meets or exceeds OEM specifications, then CNC machined to extremely close tolerances
Available in standard sizes along with fractional increases in Standard (A) (B)
Additional oversize available in .010 increments
Kit includes piston, piston rings, wrist-pin, and circlips
**Some models include tin-based anti-friction skirt coating others may not**
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