121mm

In 1994 DT Swiss launched the original Hügi ratchet rear hub, a marvel of Swiss precision engineering that set new standards for reliability and quality in the industry. The result is the new generation of 240 hubs with Ratchet EXP, an even more refined and evolved ratchet system, by moving the drive-side hub bearing inside the inner 36 tooth ratchet itself, DT have decreased the number of moving parts whilst giving the bearings a wider stance.