PROX Cast Piston (Manufacturer Ref. 01.1111.B)
Cast piston designed for replacement and refurbishment of the top end for motocross machines. Made from aluminum, this oversized piston "B" offers a precise diameter of Ø 46.95 mm and standard compression. Its domed head with porting allows for suitable clearance for transfers and valves on the relevant engines.

• Brand: PROX
• Reference: 01.1111.B
• Diameter: Ø 46.95 mm (46.950 mm)
• Oversize: Letter B
• Compression: Standard
• Material: Aluminum (cast piston)
• Specificity: Domed head / Porting

For complete cylinder maintenance, consider compatible wear parts: replacement rings 260221, pin 032020, clips CP1410C, and needle cage 400412. Installation and break-in according to manufacturer recommendations are advised to ensure optimal clearance and sealing.

Compatible motorcycles (examples):

• HONDA CR 80 R STD WHEELS 14/17 (HE04) – 2002
• HONDA CR 80 R BIG WHEELS 16/19 (HE04) – 2002
• HONDA CR 80 R BIG WHEELS 18/21 (HE04) – 1986

Ideal for motocross enthusiasts looking for a reliable and precise replacement part for the top end. Check the diameter and oversize before installation.