A disc brake wheel set is specifically designed to be slowed via rotors mounted to dedicated hubs. Since the rotor is braked by a caliper close to the hub, disc wheels often have a higher spoke count than rim-braked wheels because of the additional and one-sided twisting forces the system generates.
>>> Disc brake road bikes: all you need to know.
Current disc brake rims can be – and are – often wider, designed for bigger tyres since they are freed from the constraints of the rim caliper. Proponents of disc brakes claim that they offer better modulation at the lever for less input from the fingers.