Colby Valve Emergency Tire Valve System (2 Red) grease coupler The same BTX Power Head

The same BTX Power Head drives every stem

and one you can hand down to the next generation

Best choice for high-heat applications

No broken Zerks – Thumb-activated sleeve locks and unlocks quickly with one hand

Colby Valve Emergency Tire Valve System (2 Red) grease coupler The same BTX Power HeadColby Valve Emergency Valves offer a tool free installation from the outside of the wheel, in about 1 minute. These are . 453 size, and will fit almost everything from riding lawn mowers to truck tires. If you need to make a repair in the field, this is your solution! The "winged spacer" design makes the install as easy as twisting a wingnut. Fits standard . 453 wheel openings (everything from bicycles to trucks) Installs from the outside of the wheel