B Screw Help
I run an Ultegra 6600 RD with a nine speed cassette. I recently put on a 26 tooth cog for a hilly criterium, and I noticed something strange when I took the chain off. It seems like the upper pulley touches the cog when I'm in the lowest (biggest) rear cog, no matter how much I tighten the B screw. There's no rubbing/pinching when the chain is on and actually tensioning the RD. Is this normal?
I also like to check my limit screw adjustments with the chain off, how do I do that with this bigger cog? Thanks in advance.