Originally Posted by
iFixed
Changing out your cog will be much cheaper. And honestly...if you're new to fixed(and especially riding in general) your strength will increase quickly. I'd recommend getting a smaller cog, use that for a few weeks and see how you feel. Chances are that will get too easy, then you can put this cog back on and probably be fine. Changing out chainrings gets expensive...
Did you mean a bigger cog? I don't know what the gearing on that thing is, but it looks silly, probably 90+ gear inches. I ride over 80, and I think even that is really high (fun to keep up with traffic, but stoplights are a drag).
I'd normally suggest swapping the cog, too, but man is that an ugly set of cranks. I'm torn.