A broken valve stem is not thought about until its too late. A broken valve stem is commonly caused by large rocks, logs and rough terrain that you can encounter on the trail.

Don't risk getting stranded on the trail with no fix. Carry ColbyValve in your tire repair tool kit to replace a broken valve stem anywhere. ColbyValve is tool-free and installs within five minutes by hand from the outside of the wheel. No need to take a damaged tire to the shop – fix it in the field and continue your ride with confidence!

The Colby Valve Emergency Valve was created with the 4x4 user in mind. Machined from solid 360 brass bar stock, this valve stem replacement is 20x stronger than standard valve stems and exceeds typical valve stem PSI ratings.  Colby Valve Emergency Valve is reusable and its unique design creates a perfect seal on nearly any .453 wheel opening. This is a one-of-a-kind insurance policy that has no equal in the category. Never venture out on the trails without Colby Valve.