Oversize chains ?!?!?! All chains are the same - its the top sprocket that's oversize. Which allows you to replace worn chains with any "off the shelf" double roller chain.

NOPE, not true!
I had too much slack in my brand new cloyes roller chain set. I bought a -5 chain (undersized) and there is no more slack. I used the same new gearset I already had, but I replaced/swapped 1 new chain for another new chain. I believe the -5 chain may have had oversized rollers. That is the only thing I can think of that would take up the slack difference.


Old Geezer Racing