Chain getting stuck on the rings..

[Dead Man]

Howdy

Searched and only found one other thread, but it seemed to devolve into a side topic that strayed ever farther from my issue.. so I figured I'd start fresh:

7900 with unknown mileage... probably about 5,000 miles. Completely problem-free, super low-maintenance until this issue.. but quite suddenly, the chain gets stuck between the big and small rings when I drop from the big to the small. Went from no problems to it happening pretty much every single time I shift rings... I have to make sure I'm easing up and be prepared to immediately backpedal so it'll un-stick itself and fully drop to the small ring. No issues going back up to big ring.

Rings and chain are cleaned and lubed every ride, thoroughly so every few rides. The chain does have about 2,000 miles of gritty PNW all-weather riding on it, but, as I said, I do clean and lube very regularly, and it still gages good with a Park gage.

My thoughts are: clean/lube/re-tension the front mech cable and re-set limits... but that's all I got.

Thoughts?

Thanks!


-B