Originally Posted by
thorsteno
unterhausen is right. this is per Rohloff's website.
To prevent overstraining the hub, a minimum sprocket ratio of 2.35 must be used. With the available sprockets these minimum ratios are achieved by: 40/17, 38/16, 36/15 and 32/13. This resembles a derailleur transmission of 22/34. Larger chainrings can be used without exceptions.
And so am I. Both cog and chainrings have to fit within the parameters necessary to achieve the "minimum sprocket ratio". I don't know the MSR of a 53/19 but it seemed a little high. Either that or that is some hellacious top effective gear... 238"??!! Maybe its me but that sounds mighty high...
H