After replaced the crank arms, this chain noise appeared on my SRAM Red drivetrain. The gearing and the chainrings are the same; I only changed the crank arms. The bottom bracket spacer is installed, the chainline is correct, and there is no chain crossing. Parts are fairly new, No chain slack. Basically before changing the crankarms there was'nt this Sound, now there is one.
by drsmoerebroed
1 Comment
Are the arms the exact same as the old ones? Try microshifting the RD to see if it goes away