Pro TIRELIEF™ Kit with Setting ToolTIRELIEFS 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. 3 40 psi range 100 mesh inlet filter to keep dirt inside tire from plugging TIRELIEF Lightweight aluminum only 9 grams won't affect wheel balance Pro TIRELIEF Kit Preset your TIRELIEFS BEFORE you install them in the wheels. The setting tool uses your