Seller notes

Fits 2001 Yamaha YZ250F Black Diamond Intake Valve Black Diamond impregnation process Superior wear properties Reduces friction Resistant to corrosion and wear Lightweight and strong Excellent flow characteristics RAD Powersports Intake Valve 23mm (Std) Black Diamond Valves All RAD Powersports Black DiamondG Stainless steel valves are impregnated by a special German process to a depth of 0.002, with a surface build up of 0.0002. This Black Diamond process improves wear properties, reduces fricti...

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