
PROX Forged Piston (ref. 01.2444.A) — Designed for motocross, this PROX forged piston is made from a specific alloy using a process employed by many manufacturers. It offers a good compromise between performance and reliability for the top-end and features a patented surface treatment aimed at reducing friction in the cylinder.
This piston is aimed at riders and tuners looking for an engine component suited to the demands of off-road riding. Please check compatibility with your bore and the oversize level before installation. It is recommended to have the fitting and wear check carried out by a mechanic or workshop to ensure a perfect fit and the longevity of the cylinder.
Common compatibilities: YAMAHA WR 450 F (RE45) 2019, YAMAHA YZ 450 F (CJ21) 2017, YAMAHA WR 450 F 2017 — confirm the fitment on your exact model before ordering.