Valve Black Diamond™ by KIBBLEWHITE (Manufacturer Ref: 30-31162) — intake valve designed for motocross competition. CNC machined from a monobloc forging in EV8 stainless steel, this valve combines lightness and strength to withstand the demands of high revs.
- Usage: Intake — motocross, suitable for demanding machines.
- Construction: CNC machined monobloc EV8 stainless steel, black Nitroneg coated stem.
- Surface treatment: German process applied at .002" depth with a surface layer of .0002" to enhance wear resistance and reduce friction — superior protection compared to chrome or electrolytic nickel plating.
- Design: profiles designed by finite element analysis (F.E.A.) and validated on a computerised flow bench to ensure excellent flow.
- Dimensions: tulip angle 20° — head diameter 31.00 mm (1.220").
- Manufacturing: Made in USA.
Ideal for replacing original valves on high-use 4-stroke motocross bikes, the Black Diamond™ offers a finish and specifications that appeal to tuners and riders. Common compatibilities: HONDA CRF 250 R (ME10) 2008-2009.