Kenda 26X2.5 Tomac Nevegal Dtc Wire, K1010-Dual Tread Compound John Tomac Signature Series Tall knobs designed to penetrate and hold on to loose terrain Slow rebound Stick-E rubber allows the tread to conform to the terrain instead of bouncing off Cap ply layer on downhill tires prevents punctures 60 tpi 30-50 psi 1376 grams