PROX

PROX forged replica piston kit engineered for low friction and long-term reliability in demanding 4-stroke engines. CNC-machined from a low-expansion aluminum alloy for consistent performance.

• Size: 77.98 mm (Standard Size C)
• Compression ratio: 14.2:1
• Materials: forged aluminum alloy piston + steel rings

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.

• 96.96 mm piston diameter (Standard Size B)
• 12.5:1 compression ratio
• Forged aluminum alloy piston with steel rings

PROX Forged Replica Piston Kit designed for reliable 4-stroke performance with low friction and excellent durability. Precision CNC machining and a low-expansion forged aluminum alloy help keep clearances stable and wear low.

• Ø 77.98 mm – Standard Size C
• 14.1:1 compression ratio
• Forged aluminum alloy piston with steel rings

The PROX Forged Piston Kit is a forged replica piston set for 4-stroke engines, built for low friction and high reliability. Precision CNC machining and a low-expansion aluminum alloy help deliver consistent performance and long service life.

• Size: 96.95 mm (Standard Size A)
• Compression: 13.5:1
• Materials: forged aluminum alloy piston + steel rings

PROX Forged Piston Kit built for reliable 4-stroke performance with reduced friction and long service life. Precision CNC-machined from a low-expansion forged aluminum alloy used by major Japanese OEMs.

• Size: 96.96 mm, Standard Size B
• Compression: 13.5:1 (forged replica style)
• Rings: Steel ring material

PROX Forged Replica Piston Kit engineered for reliable 4-stroke performance with reduced friction and stable thermal expansion. Precision CNC machining helps deliver consistent fit and long service life.

• 76.96 mm piston diameter (Standard Size B)
• 13.8:1 compression ratio
• Forged aluminum alloy piston with steel rings