Cog query
Here is my problem:
Running a 3/16 KMC chain on a 1/8 16t stamped low-end cog. I like the chain and prefer to keep it; had too much stretching on 1/8 chains. The inner pins on the chain rub up against the spokes and it is annoying. Tick-tick....tick...tick-tick-tick. There are 2 threads left on the Formula hub for the lockring.
Putting the hub on a new frame and will adjust the chainline later.
Question(s): How can I get the cog to be 2 mm further away from the spokes? I have been told that a spacer would take away threads for the cog.
Who makes the widest threaded cogs? Dura-ace looks like they are recessed for a lockring. Surly and Rockwerks look the widest. Anyone have any specs? Couldn't find them on Sheldon Brown.