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With most hubs, special anti-rotation washers keep the axle from turning when the wheel is installed on the bicycle. These washers engage flat surfaces on the axle, and have tabs that fit into the dropout slots. Different washers fit different models of hubs and dropout slot widths. Many newer hubs attach the shifter cable to a pulley that rotates around the hub's axle, between the right dropout and the sprocket. Depending on whether a bicycle has horizontal, vertical or reversed (track) dropouts, different washers are needed so the shift cable can approach from the front of the bicycle. Follow the instructions for each hub.

A hub brake of any kind also must resist rotation. Brakes on internal-gear hubs use a reaction arm for this purpose, separate from the anti-rotation washer(s) for the gearing. You must install them too. The Rohloff internal-gear hub has such a wide gear range that some models use a reaction arm and others, an attachment to disk-brake tabs.