
PROX Forged Piston - Manufacturer ref: 01.6396.A. Designed for motocross use, this PROX forged aluminum piston is intended for the high-performance engines of 300 cm3 listed below. A raw and precise part, it adheres to the manufacturer's specifications with an overbore A (Ø 71.94 mm) and standard compression, ensuring a fit that meets original specifications.
This piston is suitable for modifications and replacements on motocross engines where faithful reproduction of dimensions is essential. Its flat top machining facilitates timing adjustments and work on the combustion chamber during servicing. Ideal for interventions on the top-end where tolerance and overbore adjustment are critical.
Top compatibilities:
Replacement segments: 260170 — Needle cage: 400437.