Kibble White Black Diamond Inlet valveRef : KIBW00221A / 09261675

Valve Black Diamond™ (manufacturer part no: 70-4228) by KIBBLEWHITE — intake valve designed for demanding trails/adventure and roadsters. CNC machined from a monoblock forging in EV8 stainless steel, this valve offers a balance between lightweight and robustness for precise guidance and increased longevity.

• Type: Intake valve
• Head diameter: 1.600" (40.64 mm)
• Tulip angle: 1.5" R
• Surface treatment: German process at 0.002" depth with a 0.0002" layer — reduces friction and improves wear resistance compared to chrome or electroplated nickel finishes
• Stem: black nitrided coated
• Design: profiles designed by finite element analysis (F.E.A.) and tested on a computerised flow bench
• Guide compatibility: usable with cast iron and bronze guides with tight tolerances for optimised oil control and heat dissipation
• Manufactured: United States

Ideal for the repair or preparation of classic and modern engines, the Black Diamond™ is aimed at riders looking for a reliable valve, precisely machined and designed for controlled gas flow. Particularly suitable for Triumph Thunderbird 650 TR65, Bonneville 750 T140 Executive and Tiger 750 TR7T.