14 speed internal rear hub drivetrain system shifts under load Disc compatible: requires Rohloff specific 4 bolt rotor (sold separately) Reliable, low maintenance internal design for reduced wear Highly efficient with no gear overlap and maximum ratio rang
| model | A12 rear (PM) |
| axle/spacing (mm) | 12×142 or 148mm TA |
| hole | 32 or 36h |
| color | black |
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