Titanium or steel valves? It is up to you! Fortunately OEM prices for the Titanium valves slowly decreased over the years to a level where it is reasonably priced now. Therefore ProX Racing Parts had to found a solution for their titanium valve pricing. Quality is very important to us, but it has it's price. We found a source, which makes it possible to decrease our titanium valve prices! The steel valves offer increased durability and easily extends 3 times the lifespan of the OEM Titanium valves. Due to the extra weight of the steel a heavier valve spring must be used! ProX has developed the Steel Intake and Exhaust Valve & Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springs. The ProX kit juts replaces the OEM valves & valve springs and can be installed using the OEM retainers, bases and valve seats. Steel Valve & Spring Kit Features: - Steel valves for increased durability and less wear under extreme conditions - Nitrided valves offer high microhardness while supersmooth surface finish reduces friction between stem and guide - Special stronger valve springs deal with the extra weight of the steel valves - Spring are made from premium Chrome Vanadium Steel for higher performance and durability under high RPM - Fully rebuildable with OEM retainers, bases and seals without the need of any further engine modifications - Comes as complete package for quick, easy and cost efficient replacement. Replaces the OEM valves & valve springs and can be installed using the OEM retainers, bases and valve seatsOffers increased durability and easily extends 3 times the lifespan of the OEM Titanium valvesDue to the extra weight of the steel a heavier valve spring must be used! ProX has developed the Steel Intake and Exhaust Valve & Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springsNitrided valves offer high microhardness while supersmooth surface finish reduces friction between stem and guideSpring are made from premium Chrome Vanadium Steel for higher performance and durability under high RPM. ProX Racing Parts Steel Intake Valve/Spring Kit CRF250R '04-07 + CRF250X.. ProX Steel Intake Valve/Spring Kit CRF250R '04-07 + CRF250X. ProX Steel Int Valve/Spring Kit. Engine Exhaust Valve Kit. ProX Valve / Spring Kit. Valve / Spring Kit

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