DT Swiss E 1900 Spline 30 Rear Wheel - 27.5" 12 x 148mm Center-Lock HG 11 MTN BLKDT Swiss E 1900 Spline 30 Rear Wheel 27. 5" 12 x 148mm Center Lock HG 11 MTN Black. Your entire focus lies on the right line choice the exact braking point and the spot on steering movement. All the everyday stress fades away you feel free and only hear the precise sound of the freehub system. The E 1900 Spline wheels were developed precisely for these freewheeling moments. A proven aluminum rim and hand laced steel spokes provide the reliability