I did a 100 mile ride on the Blue Ridge Parkway on Saturday, that finished with a 13-mile downhill stretch where I got up over 40MPH.
When I was putting the bike in the car, I saw that the rear tire was down to the cords in a big 4-inch patch, and the cords were showing through most of the rest of the way around the tire.
I guess I should have replaced the tire before I took that downhill
Sundays ride is out, I guess, unless I can find a bike shop here in Blacksburg that opens early on an Easter Sunday...