Kenda 650Bx2.10 Nevegal , K1010 120 Tpi, Bead,Dtc John Tomac Signature Series Tall knobs designed to penetrate and hold on to loose terrain Dual Tread Compound (DTC) features L3R Pro center tread for durability and Stick-E rubber outer knobs for great cornering traction 120 tpi 40-65 psi 640 grams