PROX Forged Piston (ref. 01.7351.A) — Designed for a displacement of 350 cm3 for cross/enduro use, this forged aluminum piston meets the demands of 4-stroke engines. Its construction from a specific alloy and forged machining provides a robust structure, suitable for demanding RPMs while remaining compatible with original use.

• Diameter: Ø 87.960 mm (oversize letter: A)
• Compression: standard 12.9:1
• Material: forged aluminum
• Patented surface treatment to reduce friction in the cylinder
• Delivered with a ring kit
• Category: Piston — Brand: PROX

Ideal for an equivalent replacement of the original part, this piston fits the engines of BETA RR 350 4T (Enduro / Racing) models from the years 2013, 2014, and 2019. The surface treatment helps to reduce wear and friction losses, while the oversize A allows for anticipating the condition of the displacement during a re-boring.

Recommended revision: check the condition of the cylinder, adhere to the manufacturer's dimensions and torque specifications during installation. For optimal longevity, have the part installed by a professional if you are not equipped for engine machining.