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  • I'm caning it in full lycra and seem to be either spinning or grinding most of the time.

    86 miles by Brompton so far this week and I'm loving it. Almost kinda tempted to go for a bigger chainring...

  • either spinning or grinding most of the time.

    You got the 2 speed right? the sprocket on that is 12/16, and is a Shimano spindle.

    In theory, you can change the big sprocket to a 15t or 14t.

    Officially you can fit a 13t sprocket instead of a 12t to make it less grindy.

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