Originally Posted by
Ken Cox
A Sugino 75 crank with a 43t Zen Messenger 1/8 chain ring and a 19t Phil 1/8 cog (I like prime numbers) will give me the same gear inches (about 60) I presently ride with a 3/32 drive system.
If ultra-roundness is what you want, I wouldn't get a Zen messenger ring. I'm sure its a fine ring, but not the same quality as the NJS Zen ring, and might not have the same ultra-round quality. I'm not 100% certain of this, but thats my suspicion.
Among available 1/8" chains, which have bushings and which do not?