I don't remember hitting anything, but I woke up to this sunday morning some 540km from home. A clean cut 5.5mm deep and 27mm wide. I did a little prayer and limped home. anyone seen this kind of damage before?

https://2img.net/h/i309.photobucket.com/albums/kk373/toswells/Cape%20Breton%202008/IMG_1091.jpg

I know that prayer. I was on a ride of about that length Saturday, and about half-way through I found a split in the rear sidewall. I must have hit a pothole harder than I thought, although I don't remember it that day, and I had just checked the pressures. Anyway, the prayer worked.
Johnny