If you have a full size spare you may want to get this kit. It includes a 5th Monster Valve for your spare and saves you $$.
Remember, if you're running 50+ PSI tires then tell us to make your inflator with a 0-160 PSI liquid filled gauge.
Monster Valves are FAST! What else will deflate a 40" tire 1 PSI per Second?! Steve found that the easiest way to use his Monster Valves most efficiently was to use the clip-on pressure gauge on his stock valve. This way he can monitor his dropping tire pressure so he knows exactly when to close the collar. The same goes for inflating. The clip-on tire pressure gauge saves time because you know exactly when to stop filling.
With an aluminum body and collar and brass cap the total weight of each valve is a mere 1.1 oz. Due to its construction it is 5 times stiffer than a standard metal valve.