The specialized roval control sl carbon clincher 29er wheelset the roval control sl 29 wheels place a strict focus on xc racing so they deliver on weight stiffness and durability to do so they39re hand built on stiff carbon rims that are manufactured with a strong zero bead hook while the hubs feature dt swiss 240 internals for fast engagement specialized roval control sl carbon clincher 29er wheelset features rim type carbon clincher tubeless ready zero bead h