PROX

Japan-made PROX piston kit built as a precise OEM replacement for 125cc 2-stroke engines. High-silicon aluminum alloy and CNC machining deliver tight tolerances and reliable performance.

• Standard bore: 54.00 mm (piston: 53.96 mm, Size A)
• Includes piston, ring set, wrist pin and circlips
• Cast high-silicon alloy meets or exceeds OEM specs

Japan-made PROX piston kit built as an OEM-spec replacement for 2-stroke engines. High-silicon aluminum alloy and CNC machining deliver precise fit and dependable service life.

• Bore size: 48.00 mm (piston size 47.94 mm), 82 cc
• Includes: piston, ring kit, wrist pin & circlips
• Type: Standard compression, Standard Size A

Japan-made PROX piston kit built as an OEM replacement for 125cc 2-stroke engines. Cast from high-silicon aluminum alloy and CNC-machined to tight tolerances for reliable performance and fit.

• Bore size: 54.00 mm (standard)
• Kit includes: piston, ring kit, wrist pin & circlips
• Type: Standard Size B, non-coated skirt

Japan-made PROX piston kit designed as an OEM replacement for 125cc 2-stroke engines, built from high-silicon aluminum and CNC-machined for precise fit. Ideal for a reliable top-end refresh with all key parts in one kit.

• Bore size: 54.00 mm (standard oversize)
• Kit includes: piston, ring kit, wrist pin & circlips
• Material: high-silicon aluminum alloy (OEM spec or better)

PROX Japan-made OEM-replacement piston kit for 2-stroke 85cc engines, built from high-silicon cast aluminum and CNC-machined to tight tolerances for reliable performance.

• Includes piston, ring set, wrist pin & circlips
• Piston size: 48.46 mm (Size B) / Bore size: 48.50 mm
• Standard compression, non-coated skirt

PROX piston kit manufactured in Japan as a high-quality OEM replacement for 85cc 2-stroke engines. Cast from high-silicon aluminum alloy and CNC-machined to tight tolerances for reliable performance.

• Bore size: 48.50 mm (standard)
• Kit includes: piston, rings, wrist pin & circlips
• Material: aluminum alloy (non-coated skirt)