~snip~
My Twenty and Sports both came with 18T on the back. One day it dawned on me [while riding beside Mrs. Fir and observing foot revolutions] that meant different gears due to the different wheel size... Better count the fronts now...
Good Idea! I have the Heron cranks ranging from 42t? up to a 48t. Rear cogs vary accordingly. My Twenty is currently geared with a 44/15 which is adequate for all but the steepest hills. I really need to work on re-powering the motor though...
Aaron
