Rene Herse Umtanum Ridge TC 650b x 2.2"The ultimate 650B bikepacking tire is designed for rides where you dont know what lies ahead. Umtanum Ridge a steep and lonesome ridge in the central Cascade Mountains. It is so remote that European settlers never renamed it, and it carries its ancestral Native American name to this day. The Umtanum Ridges large and widely spaced knobs grip tenaciosly when conditions get tough. On pavement, it rolls and corners like a slick thanks to its large and