WTB WeirWolf 2.1 Comp Tire Steel Bead Mark Weir's signature model, built to carve aggressive singletrack Lean into corners with confidence knowing that the large, transitional openings between knobs channel soil outward, while the ramped, claw-like center tread provides pro-level traction in all terrain types Good for big mountain cross country rides, Super D races, or DH adventures Steel bead, Standard rubber, rugged casing 60 tpi 35-65 psi 780 grams