• Basically undo the rear der and bolt it back on again properly

    done this and it seems to be working now...! unsure how/why. does need re-indexing though for sure

    also checked it off the bike as @Dammit recommended and it seems to work fine

    thanks all for the advice. will keep an eye on it... not sure i am out of the woods. how could it have worked fine for the first 20 mins yesterday and then suddenly stop working?

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