Colby Valve Ultimate Tire Valve System - Extra Short (2 Blue) pistol-grip The PRV is precision-engineered to

The PRV is precision-engineered to fit the specific

Fits 7/8″ giant button head fittings

located in New Hampshire

The “M12” in our model number refers to metric thread size

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Colby Valve Ultimate Tire Valve System - Extra Short (2 Blue) pistol-grip The PRV is precision-engineered toWant the best valve stem on the market? The Ultimate Valve System is it! It is a full 1 2" shorter than the Emergency and Permanent Valves, lowering the risk that it will contact hazards on the trail. If it does, the high strength will further protect you against a valve stem break. Like all of our valves, they install from the outside of the wheel! Our patented Ultimate Valves can be installed at home, from the outside of the wheel, without tire