• Is a solid axle and nuts likely to be much (or any) improvement in terms of stiffness over a hollow axle and qr?

    I need to rebuild the XT front hub on my mtb with a new cone and bearings and I'm wondering if I should swap to a solid axle while I'm at it. I don't really mind the qr lever v 15mm spanner convenience thing.

  • You'll probably puncture when you don't have a 15mm spanner to hand if you opt for a solid axle.

  • Depending on hub, cones might be threaded for M10x1.0 axle instead of M9x1.0. May need some kind of step down axle job.
    Example: Deore M510 rim brake hub has M9 axle but Deore M525 & XT M756 use M10.

  • Is a solid axle and nuts likely to be much (or any) improvement in terms of stiffness over a hollow axle and qr?

    Negligible (<10% more for a solid axle) change in bending stiffness, but the compression preload on the axle provided by the QR actually makes the fatigue resistance of the hollow axle better.

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