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
The most concerning possibility is a tire that is not seated and is starting to expand off the rim. A concern because this can cause a blow out, which can lead to a loss of control. It's rare that an out of true wheel, an out of dish wheel or a wheel miss positioned in the drop outs will cause a catastrophic problem. Andy.