In the dark and foul winter weather, having the range of ratios
following the linear sequence of an IGH, is , I found, superior..
no pattern sequence has to be seen to be used for the double shift of front and rear
to move thru the whole range of ratios..
+ flat IGH cogs can be flipped over and then double the wear-life.
Last edited by fietsbob; 08-01-11 at 11:23 AM.