
PROX forged piston, designed for engine reconditioning of Cross machines. Made from high-quality aluminum alloy, this piston aims to reduce internal friction and ensure reliable performance over time — ideal for demanding terrain sessions or regular maintenance interventions.
Designed for reconditioning equivalent to original equipment, this piston fits 250 cm3 displacements and is aimed at riders looking for a robust part for their preparation or maintenance. Its forged design offers better resistance to thermal and mechanical stresses encountered in enduro and cross, while remaining compatible with original settings (standard compression).
Main compatibilities: SHERCO 250 SEF‑R RACING (2019), SHERCO 250 SEF‑R FACTORY (2019), SHERCO 250 SEF‑R SIX DAYS (2018).
Manufacturer's ref: 01.7314.A