Schwalbe Billy Bonkers 26" Tire Go bonkers with Schwalbe's super-fast hybrid tire that excels in a variety of conditions. The Billy Bonkers 26" tire is a small and lightweight tire that features a small-block, uniform tread that provides excellent traction on dirt, gravel and asphalt. The ramped center tread improves rolling resistance and the blocky tread curves all the way down the sides for improved cornering. This tire is made to go fast and fly high and was specifically designed for dirt jump and pump track riding. The Billy Bonkers 26" x 2. 1" tire weighs in at just 490 grams. Features Fast-rolling, ramped center tread Small, uniformly spaced tread for grip on hard dirt and gravel Addix Compound26" tire SPECIFICATIONSSize26" X 2. 1Conditions Hard pack, Gravel, Bead Folding TPI67Compound Addix Protection-Type Clincher Tubeless Compatible-Intended Use Dirt jump, pump track, bmx, gravel Weight490 grams | Schwalbe | Billy Bonkers 26" Tire 26X2. 1 Performance- Addix