5 8 5 wrote:
I don't know about ramps but sometimes chainsets don't run 100% true but will function fine.
Have you checked the chainring bolts and stripped it to see if anything is untoward?
Re. chainline, ignore the small / small combo as that shouldn't be used.
Make sure the chain is under tension when you check the small / 2nd combo.
If it still rubs check the chainset is centred correctly. If all seems well it's just something you're going to have to accept.
I visually checked the spider and everything is on without gaps, but didn't mess with the chainring bolts
I did have to add 1.5mm of spacer on the NDS for this crankset + frame combination (BB30), normally I get away with .5mm spacer.
I was wondering if the driveside is too far inwards, but I have never heard of adding spacers on the drive side.
I backed the B tension screw out enough to set the smallest cog clearance, but yes it could be on the loose side.
Anyway, I do not use the small + 2nd smalles cog either so it doesn't really matter to me.