Manipulating the knob pattern of the wet-weather Storm, we've created a moto-inspired knob pattern designed for moist and dry conditions alike. The Hillbilly DH tire features knurled knob tops that enhance traction on roots, rocks, logs, off-camber drops—you name it, this tire tames them all with total confidence. Plus, with butyl inserts at the tire bead, we even have you covered against pinch flats when the trail gets particularly rowdy. Casing: 60 TPI, Dual-PlyBead: WireCompound: Base 70a / Top 42aPinch Protection: Butyl inserts at bead26 x 2.3"; psi 25-50, approximate weight 1250g26 x 2.5"; psi 25-50, approximate weight 1300g27.5 x 2.5"; psi 25-50, approximate weight 1290g