Originally Posted by vomitron
That sort of doesn't make sense (to me, anyway). 48/16 = 3 and 16/16 = 1. 48/16 = 3:1.
If my gear ratio is 3:1, that means that for every three revolutions of my crank, there is one rotation of my wheel.
the other wy around. 1 revolution of crank, and 3 rotation of your wheel, unless you have 16 chainring and 48 cog.