Originally Posted by
canflyboy
I'm putting together my first SS/Fixed using an old Miele Roadie. I'm looking at starting with 70 gear inches. This can be achieved many ways with different chainring and cog combinations: ex. 48/18 42/16
Is there and reason, good or bad, to chose one set of gears over another. The only reason I see using a smaller front chainring combo is when moving up or down rear cog, it isn't as big of a jump as using a larger front chainring.
Smaller chainring and cog saves weight. Bigger chainring and cog are more durable (more teeth, larger radius)
Don't stress about it. Pick a crankset you like and go from there.