Keep your hub spinning like new with this premium replacement bearing kit for Hydra 2 hubs. Designed to restore smooth rolling performance and long-term durability, it’s an essential service upgrade for demanding MTB riders.

FRONT HUBS

• MKMB03
  Hydra2 bearing kit for hubshells, 15mm axle front hubs or all rear hubs.
  Compatible with Hydra2 15mm axle front hubs and all rear hubs.
  Includes: 2x 61903 steel bearings

REAR HUBS

• MKMB11 — XD/HG/SS
  Hydra2 rear bearing kit for rear hubs with an XD, HG, or SS freehub.
  Compatible with Hydra2 rear hubs with XD/HG/SS freehub.
  Includes: 2 x 61903, 1 x 152610A3C3, 1 x 15267A5 steel bearings
• MKMB12 — MS
  Hydra2 rear bearing kit for rear hubs with a MS freehub.
  Compatible with Hydra2 rear hubs with MS freehub.
  Includes: 2 x 61903, 1 x 152610A3C3, 1 x 3802A3 steel bearings