hub

The hub is the central part of a wheel around which the spokes are attached and which rotates on the axle. In bicycles, the hub helps determine the ride quality, the number of gears you can use, and compatibility with your drivetrain — think of systems like Enviolo for pedal gears or Boost standards for modern bicycles.

When choosing a hub, pay attention to the number of holes (for the spokes), the axle standard (for example, 135 mm rigid axle), and compatibility with your disc brake or cassette. On this page, you will find hubs, adapter sets, and mounting kits for various bicycle types and systems.