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  • I don´t think the dropouts on my frame have enough length to run cogs with two tooth difference. I´ll try to find a second hand 20t sprocket and run 19 and 20.

    @edscoble Thanks! I´m running a 47t chainring.

    What gearing were you using on that picture? 47x19 is exactly 65GI and 47x20 about 62GI.

  • 19t definitely make it easier, I'd advised a rear brake for the hill as it'll make it a lots easier to slow down.

    48/20, 65GI with 32mm tyres.

  • Yeah, I really missed a rear brake on the way to Seven Sisters. Only a front caliper with a fully loaded bike can get overstressed quite easily.

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