isn't it easier to take apart one of your old casettes from geared MTB or smth and have yourself a selection of gears down from 18 to 12 - just to try and see what suits best?
@scorch started
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isn't it easier to take apart one of your old casettes from geared MTB or smth and have yourself a selection of gears down from 18 to 12 - just to try and see what suits best?