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PROX Forged Piston designed for motocross riders seeking a robust and OEM-compliant part. Machined from aluminum, this piston offers a good balance of performance and reliability without risky engine modifications. Its domed head and reed machining ensure compatibility with the flow of the cylinder head on stock setups.
Diameter: Ø 67.45 mm (oversize B)
Compression: standard
Material: forged aluminum
Surface Treatment: patented process to reduce friction in the cylinder
Parts Compatibility: rings 267250, pin 032040, circlips CP1815
Manufacturer Reference: 01.6317.B
Ideal for a direct replacement on motocross machines, this piston is aimed at users looking to restore or maintain their engine while respecting manufacturer tolerances. Suitable for KTM models 250 SX, 250 EXC, and 250 EGS (1999 - 250 cc). Installation and wear inspection recommended by a professional to ensure proper break-in and fit.
30 days returns
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