Just put a "new" set of tires (actually old ones that hadn't been used) on my wife's bike. The rear tire, a Specialized Team Master, 26 x 2.10, seems to be "crooked", when you roll it, looks like an out of true rim, the rim is true. The bead is set in the rim, I've tried letting air out and manipulating the tire, but still has a spot where it veers to the side. It is the first tire, on a motorcycle or bicycle, that I have ever seen like that. Anyone experienced a bad tire--it's a first for me!