• If you have standard 68mm GXP then Rotor 3D is right for that i.e. 24mm axle.

    Not Rotor 3D+ or Rotor 3DF both have 30mm axle.

  • @Hovis - although you can replace the gxp BB with a rotor BSA30 one and run the 3d+ /3DF 30mm axle in a bsa 68mm threaded bb

  • Yes you can but I dont see any real advantage to switching to 30mm axles and paying rotor £40 odd for BB .. I am using a £12 Ultegra 6700 BB with Rotor 3D

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