pbass

I have a 1x11 SRAM Rival setup on my gravel rig. Lately my shifting has been a little wonky--I started getting sluggish shifting when downshifting into the lowest 3-4 gears. So, today I experimented with adjusting the barrel adjuster and could definitely make noticeable changes to the smoothness of the shifting in either direction. So, I've got it now where it's shifting pretty well downshifting all around, and upshifting in the smallest rings from around halfway on the cassette, but when upshifting on the other/bigger half of the cassette--the bigger cogs, it's still sluggish and even hangs up/won't shift once in a while. Derailleur hanger alignment looks good all around. I'm a hack, so before I start messing with things too much, any advice on what to try?

DrIsotope

How old is your cable/housing? If the answer is a year or more, it's likely time to replace. Also can't hurt to lube the pivot points on the RD (Bike Aid Dri-Slide is perfect for this.)

cxwrench

Check b tension for sure if it's SRAM, they're sensitive to that. As the Dr posted it might be time to replace cable/housing. Undo the cable at the derailleur and shift it while holding the cable in your fingers.

pbass

Thanks guys. So, I'm looking for videos about the B tension screw and will continue to research. Not to be lazy, but, what do I do with that thing?

EDIT: FYI cable housing is only a few months old. My LBS installed my new cassette then and also did new cable, etc.