Longacre brand Tire Relief kit for race wheels. Complete with bleeders, wheel inserts, and gauge. 0-60 lbs. guage. NICE. Sells new for $418!
TIRELIEFS™ Tire Pressure Relief Valves
Relieves tire pressure buildup as you race - automatically.
Use with quick change adapters or mount directly in your wheels by drilling a 1/8" NPT thread hole.
See other parts in my store.