We view speed and control as a right not a privilege which is why we took the tread design of the fast trak sport tire a step further by manipulating each knob with fe analysis paired with extensive rider feedback and design experience the result is a xc tire with less rolling resistance more traction and a rugged casing that39s ready for anythingcasing 60 tpibead wirecompound 70a650b x 20quot psi 35 65 approximate weight 680g