• My bike have similar GI* as the Surly above, partly because one; it's not a bike that you'd go fast on, two; carrying load as jammy said, will be easier with less GI, especially when I tend to use a trailer and three; it's easier to climb without getting out of the saddle.

    spin to win.

    *42/18 with 26 x 2.35 tyres, giving me a spinny 62 GI, need to get a 19t though.

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