I was out hitting some familiar corners when on one all of a sudden something caused the rear tire to start wobbling. just a few fast oscillations that didn't grow in intensity or cause a problem but it was a bit startling. Like I said I have hit this corner on quite a few occasions and never had this happen before. Could a minor corrugation in the pavement been the cause? I know I didn't hit anything as I would have saw it or felt the tire hit it. I'm not a racer by any stretch so have no real idea of what might have been the cause. I continued the ride with no further issues and checked the tires when I got home and they were fine and at proper pressures.