• Fitted a set of Humpert Ergotec handlebars, on the recommendation of those in the retro mountain bikes thread.

    I discovered in this process that the Raleigh Ascender (or my one, at least) has a 21.1mm-diameter quill stem, rather than a standard 22.2mm (1"), so standard quill stems and Ahead adapter do not fit. This is an old BMX and early MTB standard, apparently. So I could not swap out the stem.

    Instead of sensibly abandoning my plan to fit the new handlebar, I bent the original 1-bolt stem clamp open, shoved the new handlebar in and bent it closed again. Do not try this at home. The clamping area on the Humpert Ergotec is 25.4mm so it fits. Sensible people would get a handlebar without a closed loop and just slide it in.

    It is amazing how much lighter an aluminium handlebar is than a steel one.


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