REAR DT 27.5 584x30 EXC1200 CLASSIC 148x12mmTA 6B XD/MICRO DEG TBLSThe EXC 1200 CLASSIC supports your most daring line choices, with still plenty of reserve if they dont go to plan DT Swiss` unique process provides maximum carbon compression to push durability further than ever before Patent pending technique for layer by layer quality control ensures minimized imperfections straight out of the mold 180 series hubs with low friction ceramic bearings and new 90 tooth DEG freehub system (rear wheels only) Rear wheels