
PROX Cast Piston — Manufacturer Ref: 01.1323.A
Replacement part designed for motocross riders seeking a reliable piston for their top-end. This PROX cast piston is machined from aluminum and comes in oversize A (Ø 66.34 mm), compatible with cylinders designed for this size. Flat top and skirt treated with MoS2 (molybdenum disulfide) for a finish suitable for cylinder/skirt contact.
Useful reference for engine interventions and cylinder-piston kit refurbishments on HONDA CR 250 R (ME03) 2002–2004 models. Ideal for off-road sessions where the reliability of internal parts is crucial.
Wear parts and associated references: rings 260253, pin 032042, clips CP1812, needle cage 400403, top-end gasket kit 601300. Check the fit and bore of the cylinder before installation.