I have a 56cm IRO Phoenix single speed. It is a little too big for me, but fine for commuting. I am looking into getting a Jamis Aurora. The sizing of the 55cm Aurora seems very similar to the 56 IRO ss? Mening I should go with the 53 cm Aurora. 53 just seems very small, I am 5 ft 10. Anyone care to comment? I would ppreciate it. Thanks
By way of reference, I am 5'6" -with 28"-29" inseam-and ride a 50cm Aurora comfortably. The seat is down almost all the way. It would seem at 5"10" that you would need a 55cm. Are there any you can try one to get a better idea?