Mountain Bike Inner Tube Valve Types

Bicycle inner tubes have two major types of valves.

Mountain bike inner tube valve types. Park tool 713 273 views. Mountain bike tubeless tyre set up 101. A third rarer type of valve is the woods or dunlop style. Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire.

Inner tubes vary in size depending on the circumference of the wheel and the width of the tyre. How to patch a bicycle inner tube duration. Then within these categories there are further sub divisions such as 26 inch 27 5 inch and the 29ers commonly. The humble inner tube may be one of the simplest parts on your bike but with a wide range of sizes different valve types and a choice of materials choosing the right tube isn t necessarily as.

So a 29 inch mtb tube will have the same diameter as a 700c road wheel while a 27 5 inch tube will be the same diameter as a 650b road wheel. Depending on whether your bike is a road bike touring bike mountain bike or child s bike the diameter and circumference of the wheel can vary. Presta schrader and woods valves are each most common on particular types of bikes but they function largely the same and are frequently but not always interchangeable on wheel rims.