I adjusted the chain clearance. This is not a chain clearance correction.


Before and after the work.
The chain clearance is looking much better.
Usually I use the term "chain clearance correction" because I either do special machining or use some brute force to work on this,
but today I only adjusted the specification that was originally built into the frame,
so I'm calling it "chain clearance adjustment" instead.


This frame has a direct-mount derailleur bracket secured with two bolts,
and in cases like this, the bracket angle is usually designed to have some adjustability.

There's a rivnut (threaded rivet) installed,


but the back of the bracket is relieved to avoid the rivet's flange,
and moreover, that relief is a slotted hole.


So you can adjust the chain clearance by tilting the angle of the bracket itself.
The slotted hole is intentional, of course — it's designed specifically for chain clearance adjustment.
When a front derailleur bracket is bolt-mounted, it's usually designed with this adjustability in mind,
so I recommend respecting that design intent and adjusting the chain clearance according to the size of your outer chainring.