Aluminum Double Lock Nut Racing Valve Stem, Black, Requires 7/16″ Hole

These high quality aluminum racing valve stems are best-in-class for reliability given their double lock ring design. Perfect for small formula cars, sports racers, sprint cars, karts and any performance application where you need absolute trust that your wheel, tire, and valve combo are going to perform:

• Requires a 7/16″ hole.
• Weighs only 12 grams, which is less than half the weight of similar chrome valve stems at 27 grams.
• Only 1.42″ or 36mm total length without cap.
• 8-piece design includes:
  • Aluminum hex cap with sealing seat.
  • Two hex locking rings (14mm/ 0.55″). These act as a double lock nut system for the valve body to the wheel; far superior to standard all rubber valves or single nut valves.
  • Aluminum washer that sits on the outside of the wheel. 1.53mm or 0.06″ thick. (10.5mm I.D./ 14mm or 0.55″ O.D.). Protects the finish of the wheel and ensures the double lock rings seat flush.
  • Multi-step rubber o-ring that fits in the valve base to seal the inside of the wheel.
  • all aluminum valve body with premium threaded Schrader valve. Valve body is slotted for a flathead screwdriver to assist with installation.
• Compatible with both regular air and nitrogen.
• Sold individually.

Example pictures of valve are installed on an O.Z. Racing 5.5″x13″ magnesium wheel with 7/16″ hole (SCCA legal Formula Ford wheel).