outside of sprocket wear

the outside of my front sprocket is worn a little where the chain side plates have been touching by the look of it

it has only happened since the last ride (100-150 miles ago) as i clean and adjust the chain after every ride

the markers are aligned, measurement from pivot to spindle same both sides and chain correct tension.

i do have to tighten the chain after every ride however but the is not lateral play or excessive slack.


any ideas? maybe the swig arm/frame are misaligned?

I read somewhere that the swing arm should be pushed fully to the left side before tightening and on mine this looks correct for proper line up of sprockets..
However after doin a full irish enduro season, I would expect some marking on the sprockets...!
If you run a good x ring chain you should not need to adjust after every ride.