• ^^The fix-G is interesting, not used it myself, personally I'm not mad keen on splines having used the Miche carrier which always feels like there's a tiny smidge of play even with a tight chain (probably being over-sensitive though).

    It may be worth considering the disc-cog solution, cogs are reversible so they last a while, and there's a huge variety of hubs at your disposal - from ready made solution based on an XT hubs from Velosolo through cheap, bomb-proof, exotic or colourful MTB hubs
    Excuse the duff photo, but here's a snap of my home-spun version (DaBomb DH hub with replacement axle (nicked from a trashed surly hub)

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