PROX Steel Exhaust Valve Conversion Kit - Yamaha YZ250F/WR250F

The ProX valve are made by the leading OEM factories in Japan and are a direct and cost-efficient OEM replacement. ProX steel valves can be used in combination with all the OEM valve train components like valve springs, guides, bases and retainers.

• Manufactured by the leading OEM factories in Japan
• Made to exact OEM specs and tolerances
• The steel valves are a direct and cost efficient OEM replacement

Anything in stock ships within 3 to 5 working days with tracking. Ordering something we source directly from the manufacturer? The delivery time is shown right on the product page. No fine print, no surprises. Seat Concepts seats are made to order for you in the USA; custom work takes around 6 weeks, and anyone who owns one will tell you it's worth the wait. Questions about a delivery time? Email info@femon.nl and you'll get an answer from someone who actually rides.