Have recently gone singlespeed on my Salsa Selma 29er, and fitted a new singlespeed cog/spacer kit on the rear wheel, and a new chain, a singlespeed-specific KMC Z610HX. It's 3/32 so should be the right size.
However, having taken it for a test ride round the block, there is a horrible grinding noise coming from, I think, front chainring, which is an old 34T middle ring one, which I previously used as part of my Alfine set-up.
The chain line is as straight as a die as far as I can see. The tension, adjusted via the EBB, is such that you pinch the chain with your fingers and there is just a small amount of slack in it.
Is the grinding noise something that will settle down over time or do I need a singlespeed specific front chainring? or is there some other elementary D'uh! thing that I have neglected to do?
Thanks in advance for any advice...