Current 15+ 26In Mountain Bike Tires
Current 15+ 26In Mountain Bike Tires. 26 bike tires are quite common on a variety of different types of bikes. Mountain bike tires targeted at trail, enduro, and downhill bikes are progressively wider, more durable, and have toothier no matter the size, the vast majority of modern mountain bike tires are tubeless ready, meaning they will hold air without a tube inside, which in turn allows you to run lower air.