Prox Casted Piston kitRef : PRO00201A / 1093913001

PROX Cast Piston (Manufacturer reference: 01.4108.A) — replacement part designed for engine preparations and revisions for motocross use. Made from aluminum, this oversized piston A is intended for engines requiring a bore of Ø 47.94 mm and maintains standard compression. Robust design with a domed head and machining for reed valves, it features an optimized intake passage and two lubrication holes on the exhaust side skirt for targeted lubrication of the skirt.

• Diameter: Ø 47.94 mm (oversize A)
• Compression: Standard
• Material: Aluminum
• Features: domed head, reed valve machining, intake passage, 2 lubrication holes on the exhaust skirt
• Associated part references: rings 260069, pin 032021, clips CP1410C, needle cage 400406

Designed for the motocross world, this PROX piston is suitable for replacements during cylinder rebuilds on certain 80 cc models. Compatibility examples: Kawasaki KX 80 (models 2000 - STD Wheels 17/14 and Big Wheels 19/16). Always check the cylinder bore and manufacturer tolerances before installation. Ideal for riders seeking a quality original part to restore proper ring clearance and engine geometry.