Originally Posted by
fietsbob
Only get a 9 speed chain out of necessity.. like having a 9 speed cassette.
the scraping is part of forcing it up and over the big ring to Up shift ..
its invisible to anyone on your right , Dont over think it..
I've been running Sram 830 8sp chain on 9sp xtr for a while now. I'm tempted to try one on my 9sp 105 bike.