ProX Piston Kit for KTM250SX-F '23 + FC250 '23 14.5:1 (80.98mm)

Discover the powerful performance upgrade for your latest-generation 250 4-stroke engine with the ProX High Compression Complete Piston Kit, size 80.98 mm (Dimension C) with an impressive 14.5:1 compression ratio. This complete forged piston kit was specially developed for the KTM 250 SX-F from 2023 and the Husqvarna FC 250 from 2023 (also perfectly suited for equivalent GasGas MC/EX 250F models). ProX delivers a premium, Japanese forged piston that delivers significantly more power, torque, and a more aggressive power band—ideal for serious motocross riders, enduro riders, and racers who want to get the most out of their 250F without expensive cylinder or head modifications. This high-compression variant is a popular choice for riders seeking a noticeable power boost on the MX track, in technical enduro sections, or during intensive training sessions.