Technology

First, let's discuss what a freehub is, in essence, it plays an important role in fixing the rear gear. A freehub incorporates a drive mechanism that allows coasting or reversing on the drivetrain. The cassette is attached to the free center by a threaded locking ring. Special tools are required to connect freehub and cassette. Different brands of kits Shimano HG (Hyper-Glide) This is the most ...