Originally Posted by AmericanTemplar
So you're saying that the difference in the thickness is just in the teeth?
so the 1/8" or 3/32" refers to the "thickness" of the chain. 1/8" chains are thicker than 3/32" chains, and 1/'8" chains are used mainly for singlespeeds and bmx bikes. if you switch your 3/32" chainring out for a 1/8" chainring, you're switching to a thicker chainring, and your old 3/32" chain wouldn't be able to fit on it because it's too narrow. you'd have to switch your chain to a 1/8" chain so that it would be compatible with your new 1/8" chainring.
also, if you switch to a 1/8" chainring, keep in mind the possibility of having to also switch out your chainring bolts. because the 1/8" chainring is thicker than the 3/32" chainring, the bolts need to be slightly wider to accomodate the 1/8" chainring. you might
be able to get away with using the same bolts, as the difference between the old and new chainrings is just 1/32". but if you want to stay on the safe side, look for stack bolts that are compatible for 1/8" cranks...they're like 5 bucks at your lbs.