ProX Titanium Yamaha Exhaust Valve YZ450F '14-19 + WR450F '16-20 28.2444-1

ProX Titanium Exhaust Valve YZ450F '14-19 + WR450F '16-20 and 

• 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.