ProX Pst Kit KTM250SX-F '16-22/FC250 '16-22 14.4:1 (77.98mm)

Get more power, faster throttle response and more aggressive power delivery from your KTM 250SX-F (2016-2022) or Husqvarna FC250 (2016-2022) with the ProX Piston Kit 14.4:1 (77.98 mm) – the high-compression piston kit trusted by serious motocross riders and tuners worldwide!

ProX delivers premium race-grade piston kits. This complete kit includes a high-quality forged piston in exact 77.98 mm sizing with an increased compression ratio of 14.4:1. This delivers a clearly noticeable power gain, better throttle response across low and mid-range RPMs, and a far more aggressive power delivery – ideal for sand tracks, hard clay, or race events.

The piston features a special coating for optimal heat dissipation and minimal wear. The kit comes complete with:

• Piston rings
• Piston pin
• Clips

The 14.4:1 compression ratio is the perfect balance for riders who want more punch without extreme tuning or engine modifications. It fits perfectly in the original cylinder (or after a light honing) and is a direct upgrade for stock or lightly tuned engines.