Prox Full cast size A Piston kitRef : 9574DA / 1094858001

PROX Forged Piston - Manufacturer's ref: 01.6396.A. Designed for motocross, this PROX forged aluminium piston is aimed at the high-performance engines of the 300 cm3 listed below. A raw and precise part, it adheres to the manufacturer's specifications with an oversize A (Ø 71.94 mm) and standard compression, ensuring compliance with original specifications.

• Diameter: Ø 71.94 mm (oversize letter: A)
• Material: Forged aluminium
• Compression: Standard
• Specificity: Flat top / reed machining (prepared for intake machining)

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 a service. Ideal for interventions on the high-performance engine where tolerance and adjustment of the oversize are crucial.

Top compatibilities:

• KTM 300 EXC SIX DAYS (2003) — 300 cm3
• KTM 300 EXC (2003) — 300 cm3
• KTM 300 EGS (1999) — 300 cm3

Replacement segments: 260170 — Needle cage: 400437.