Complete set for gently removing bearings from the frame and refitting them without using a hammer. This replacement option minimizes the risk of damaging the bearings or the frame during work. The set includes the following 13 sizes:. 8mm ID / 22mm OD. 8mmID / 19mm OD. 10mm ID / 26mm OD. 10mm ID / 19mm OD. 15mm ID / 24mm OD. 20mm ID / 32mm OD. 10mm ID / 22mmOD. 12mm ID / 24mm OD. 15mm ID / 28mm OD. 17mm ID / 30mm OD. 12mm ID / 28mm OD. 15mm ID / 32mm OD