VALVE EXHAUST TITANIUM YZF450, PROX 28.2423-1 5TA-12121-00-00

TITANIUM Hi-Performance Racing Valve EXHAUST

Size. Head Diameter 28.00mm, Stem Diameter 5.00, Length 75.08mm,
Prox offers steel and titanium engine valves as well as titanium into steel conversion kits. The ProX titanium valves are manufactured to high quality standards. high tech Ti3al alloy is forged in one-piece for extra strength while the material offers superior material properties at high

temperatures the additional CrN coating offers extreme surface hardness and creates considerably lower friction.The ProX titanium valves do exceed OE specifications in dimensions and reliability. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The steel valves are made by the leading OEM factories in Japan and are a direct and cost-efficient OEM replacement.

Yamaha YFZ450 (2004-2009), Yamaha YZ450F (2003-2009), Yamaha WR450F (2003-2015), Yamaha YFZ450R (2009-2015), Gas-Gas EC450F (2013-2015),

PROX 28.2423-1