Rohloff,16t cog, 26" wheel, 38or39t,.. with a 20" wheel chainring is a 53t.
Prior derailleur bike 13~34 t freewheels, so crank is a 50,40,24t, 700c wheel, 40 wide tires.
Since new cassettes start at 11t, now, thus making a 42t About the same ratio .
with a 12t a 46t chainring would do.
only potential spin out is when I'm descending, recovering from the climb
so not putting out more effort trying to overrun my top gear,
savoring the coasting down the hill, stopping to admire the view.
Last edited by fietsbob; 02-17-12 at 12:42 PM.