I have a 2011 felt Boughmann I think gear ratio of 2.75( 17 teeth in back and 47 in front that I counted) Sometimes it is too small and want more. Is it possible to change the one side of rear tire to have a fixed gear with 12 teeth instead of the current ss and the other side still with the 17 teeth? How much would that make me faster? Also would it just be better to change my front gear to 52?
If it is what would be the cost to have that changed?