PROX

The PROX Forged Piston Kit is a precision CNC-machined, forged-aluminum replica piston designed to reduce friction and maximize 4-stroke engine reliability. Built with the same low-expansion alloy used by major Japanese OEMs for consistent performance.

• 77.96 mm piston diameter (Standard Size A)
• 14.1:1 compression ratio
• Forged aluminum alloy piston with steel rings (kit)

PROX Forged Piston Kit for 4-stroke engines, built from a low-expansion forged aluminum alloy to reduce friction and maximize reliability. Precision CNC machining delivers consistent fit and performance for demanding rebuilds.

• 77.97 mm piston diameter (Standard Size B)
• 14.1:1 compression ratio (forged replica style)
• Steel rings included in a complete kit

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

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

Refresh your front suspension with the PROX Fork Seal/Wiper Kit featuring genuine NOK replacement seals. Designed to stop leaks and keep dirt out for smoother, more consistent fork performance.

• Size: 48.00 x 58.00 x 10.00 mm
• Kit contents: 2 fork seals + 2 wipers
• Quality: Genuine NOK replacement components

Restore smooth, leak-free front suspension with the PROX Fork Seal/Wiper Kit featuring genuine NOK replacement components. Supplied as a complete set for servicing both fork legs.

• Includes 2 fork oil seals + 2 dust wipers
• Genuine NOK seals for reliable fit and durability
• Size: 35.00 x 48.00 x 11.00 mm