Exhaust valve kit - Yamaha YZ 250 F ('14-'17) / WR 250 F / YZ 250 FX ('15-'17) - ProX

Exhaust valve kit (steel) and springs from ProX for Yamaha YZ 250 F (2014-2017) / WR 250 F / YZ 250 FX (2015-2017).

ProX uses the best materials and the steel valve and spring kits provide an affordable solution for replacing titanium valves. Steel valves have a lifespan three times greater than that of titanium, and to compensate for the heavier weight of the steel valves, the kit comes with reinforced valve springs. No engine modifications are required.

The kit includes:
- exhaust valve x 2
- exhaust valve return spring x 2.