DT Swiss E 1900 Spline 30 Front Wheel - 29" 15 x 110mm 6-Bolt BlackDT Swiss E 1900 Spline 30 Front Wheel 29" 15 x 110mm 6 Bolt 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 required from an