I've decided to change the gearing on my fixie. Riding a fixed gear bike takes more dial in time and you may just find yourself messing with ratios for a while. I was previously running 45/16, which was perfect for when I built the bike. It was a flat commute for the most part without much stopping and starting. I tend to prefer to spin out a gear rather than power through it at a low rpm. I'm a high cadence guy.
Since I'd moved, I've ridden the fixie very seldom. I did about five 26 mile commutes last summer and after each one I kept telling myself I needed to change the gearing. I've got quite a few nasty hills between here and there. The last 26 mile commute I did on the fixie I decided it was enough. Standing up on the hills, so exhausted I was simply flopping my body weight on the top of the stroke and when I hit the bottom, muster up the strength to do it with the other leg. Well, it might not have been that bad, but it sure felt like it.
I've decided to make a significantly large change, by going one tooth bigger in the back. I say this is a large change, because if you're trying to fine tune your gear ratio, you would probably mess around with the front chain ring, rather than the rear cog. When I was running a 45/16 had 75.94 gear inches per revolution of the wheel. Now, with a 45/17 set up I've only got 71.47 gear inches. 4 gear inches per crank revolution makes a difference!
I'm interested to see how this new setup works.
I do have a bike repair stand, but I'm getting to be a wuss about working out in a cold garage.