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  • I'm after a fixed audax bike, ideally with double discs: the All City Super Professional looks good, but almost all the reviews on there complain about the rear "dropouts" failing to retain the wheel in position.

    Is this on account of the small surface area against which the screws fasten and why aren't the tugs doing their job? I'm sure I remember riding fixed with a hollow axle conversion. Could this be enginerded out with serrated washers or similar (although you'd guess someone would have thought of that)?

  • the reviews on there complain about the rear "dropouts" failing to retain the wheel in position.

    I'm betting on user error. The massively over-complicated proprietary dropouts seem to have more than enough hardware to retain axle location. The tugs are not the position retaining device, they are just the position setting device. The combination of the M12 through-axle and the M5 slider locking screws should be more than adequate when tightened to the correct torque

    Which 12×142 fixed hub were you thinking of using? I'm only aware of Paul, I'd want to check before buying anything that the Paul endcaps will actually drop in to the AllCity dropouts

  • You want off the peg complete or could do a build?
    I have an octane one kode with a surly 135mm hub with a double disc hack somewhere in Hulsroys thread.
    They also do them complete but yould need to change the rear hub

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