REAR DT 650B 584x24 GR1600 SPLINE 25 142x12mmTA CL 8-11sCAS TBLSThe GR 1600 is DT Swiss` mid level entry to their new line of gravel specific wheels 24mm inner width supports wider tires for a comfortable dependable ride 350 Centerlock hubs with forged freehubs (rear only) and 6 bolt adapter included DT Swiss Aero Comp Wide straight pull spokes with DT ProLock Squorx ProHead aluminum nipples 25mm rim height with a focus on aerodynamics