surly old man
Join Date: Sep 2006
Location: Carlisle, PA
Bikes: IRO Mark V, Karate Monkey half fat, Trek 620 IGH, Cannondale 26/24 MTB, Amp Research B3, and more.
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I think it is pretty common actually. Unless the commute is hilly, it really makes sense to simplify the bike as much as possible to increase its reliability.
And, even with short dropouts you can probably still get away with a one or two tooth difference on each side of a flip-flop. Each tooth adds 1/2 inch of chain. Half on the top half of the loop, half on the bottom, so each tooth requires 1/4 inch of drop. I bet your drops are longer than 1/4 inch.
Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...