Today I replaced my chain with a Wipperman Hub-specific one.
Went for a ride and thought my Bottom Bracket was going to fall off. It felt and sounded like the ball bearings were going to explode, a god-awful noise when under load (quiet when not pushing it or climbing hills).
I hoped it was the chain so I slackened off the chain a bit (so it wasn't tight)...same noise.
went home, put old chain back on....quiet as a nouse again.
Q - is this because my chainring/sprocket has worn to fit my old chain and now need replacing with any new chain?
?