• Nice. Is the foolproof way to just add one link at a time until it works on big chainring/cog and small chainring/cog? It's a triple chainset, BTW.

  • Set the gearing to the big cog at the back, then open the quicklink without taking the chain off and move the chain round until both ends are sitting on the big ring's teeth, with some sort of gap in between. The rear mech will fight you, so an assistant or a velcro strap may be useful.

    Work out what the smallest gap is you can have without the rear mech looking over extended. Add that many links.

    A chain with two quicklinks is not really any more likely to fail than one.

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