Road bike rear wheels are not just available as part of a wheelset but also individually. In order to check the rear wheel will fit your bike, you should consider the installation width and axle system (quick release, thru-axle, threading) as well as the whether you need rim brakes or disc mounting (centrelock or bolt-on). On the rear wheel, the freewheel body (Shimano/SRAM or Campagnolo) has to be considered. When it comes to the material, bikers usually have the choice between carbon and aluminium.