Joined: Jul 2015
Posts: 7,431
Likes: 3,262
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
the wheel got badly reinstalled during maint. and it was then ridden with the wheel out of position, and the brake pad touching the tire when engaged.
wheel then shifted when going over a bump or whatever, hiding the cause of the tire wear....
or the sidepull or centerpull caliper got knocked out of alignment, then went back to where it should be.