PROX forged replica piston kit engineered for reliable 4-stroke performance with reduced friction and long service life. CNC precision machining and a low-expansion forged aluminum alloy help maintain consistent clearances under heat.
PROX Forged Piston Kit is built for riders who want dependable 4-stroke power and durability under demanding motocross/enduro conditions. Manufactured from a specific low-expansion forged aluminum alloy, it helps reduce friction and maintain stable piston-to-cylinder clearances when temperatures rise. Precision CNC machining ensures accurate fitment and consistent performance ride after ride.
If you're refreshing a worn top end or doing a performance-minded rebuild, this kit delivers a strong balance of reliability and race-proven design—ideal for keeping your engine running smoothly and efficiently.
✅ Low-expansion forged aluminum alloy to help lower friction and maximize reliability✅ State-of-the-art CNC precision machining for accurate fit and consistent quality✅ Uses the same low-expansion/low-friction alloy approach as major Japanese engine manufacturers
🔹 Helps maintain dependable performance under heat and high load🔹 Supports a smoother-running engine thanks to reduced friction characteristics🔹 Great choice for top-end service when you want OEM-style fit with forged durability
📌 Brand: PROX📌 Vendor part number: 01.2440.B📌 Engine type: 4-Stroke📌 Piston diameter: 96.96 mm📌 Compression ratio: 12.5:1📌 Piston material: Forged aluminum alloy📌 Ring material: Steel📌 Piston size: Standard Size B📌 Style: Forged Replica📌 Units: Kit
⭐ Forged construction and carefully selected alloy for confidence in demanding riding⭐ Precision manufacturing aimed at reliable fitment and long-term durability⭐ Ideal for routine rebuilds and performance-focused maintenance to keep your bike ready
