DT Swiss ER 1600 Spline 23 Rear Wheel - 700 12 x 142mm Center-Lock XDR Ratchet 36 SL BLKDT Swiss ER 1600 Spline 23 Rear Wheel 700 12 x 142mm Center Lock XDR Black. Its easy to lose track of time on the ER 1600 series endurance wheels. Thanks to the 22mm rim inner width and the mix of comfort and grip provided by the ideal support of wide tires you can easily change your plans and extend the ride. You will enjoy the quick engagement of the 350 hub with 36 SL Ratchet which combined with the strong spokes will give you a smooth ride even on