Originally Posted by
sshakari
can I run a 3/32 chain with a 1/8 cog and vice versa on a single speed freewheel?
Asking because I ride a 48x20 and just got a new 3/32 crankset.
You're going to have to get a 3/32" cog if you put on a 3/32" chain.
Like dsaul mentioned, a 3/32" chain won't even fit over the teeth and sit in the valleys of a 1/8" cog or chainring.