My cannondale synapse carbon has some rubbing on the chainstay that looks to be from where the tyre was rubbing.
I’m not sure it’s my 25 tyres but the previous owner, as they were running 28 wide tyres.
It looks superficial and not deep, just past the paint, but I’m curious to know how to protect it (nail varnish?) and is it worth moving to a stiffer wheel to overcome future paranoia?
I’ve put some white maker pen in it to see if it does flex enough to run that paint off.