• The ridges should be matched to the locations of the sealed cartridge bearings in the hub (to provide support)

  • So, if the outside diam. of the tube matches the inner diam. of the hub it should still be all good, yeah?

  • Logic is sound but I think it'd all have to be a very precise fit (both the tube in the hub and the axle in the tube) to ensure everything was working as intended

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