Thanks for helping me try to diagnose this guys. I appreciate it. Though it does appear that I have just about every possible part of the drivetrain listed above as the culprit!
Let me see if I can answer a few of the questions above.
- The Chainring is not original. The Chain and Cog/Hub ARE original. (even has the wider Westfield chain)
- The chain is in excellent condition, all rollers turn easily and there are zero binds or issues with the chain (that I can note)
- I will examine for rear shark-finned cog, but I believe it is okay.
- Thank you for the links!
- It's a ND model D hub, hand turning it and such provides a very smooth action. Turns easily and seems to be 'normal.'
I do feel like it was the BB being too tight. Now with the looser/lighter pre-load
almost all of the popping is gone, but I need to give her a better ride test to see.