Joined: Feb 2012
Posts: 19,373
Likes: 5,516
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Rough tire mounting/removal with a tool can cause the inside of the bead to get damaged. Also a poorly seated tire can see the tire bead chafe against the rim at a spot it's not intended to seat at. We see this kind of failure frequently at work. Andy