The 180 rear hub from DT Swiss is their very lightest model, weight savings have been found in every aspect of the hub’s design. From machined channels in the freehub body, to the carbon shell and machined hub flanges. DT’s engineers even machined out material from the inside of the hub and Ratchet System to push the weight even lower. They’ve done it all without sacrificing the durability and ease of maintenance you associate with DT Swiss. The freehub body is compatible with 8, 9, 10 and 11 speed cassettes. Ceramic bearings sit on an oversized 15mm axle creating stiff platform to help put the power down. The 180 rear hub carries over many of the features from previous iterations; like the Ratchet System, and tool free maintenance and service. The DT carbon ceramic hubs are designed to keep you rolling for thousands of miles at the highest level of performance.