DT SWISS EXP RATCHET DEG 90T

For a suspension system to absorb a succession of shocks and not pull on the chain, an additional movement is required that does not influence chain tension and can reset itself quickly. To reset the DF system, we don't need any additional components. It’s simply the rotation of the wheel during freewheeling and the drag from the pressure of the springs on the ratchets that forces the DF system backwards into reset or disengaged mode. As soon as the chain is moved forward by pedaling or chain pull through the frame suspension design, the DF system can move forward a specific degree of freedom without transmitting force. It thus prevents pedal kickback caused by the frame suspension design. At 0° the high engaging hub functions per usual. When adjusted to your preferred degrees of freedom, and as long as the system is freewheeling, it will be able to act as an anti-pedal kickback device.