I've got a Continental Top Touring 2000 37x700 on the rear of my recumbent. At 80psi, it rolls and rides well. With a 70% rear weight bias, you just know I'm hard on that tire. In 3 years, it has rolled over it's share of junk. Last year I got my only flat to date. Whatever the debris was would have flatted most any road tire judging from the gash in the tread. I booted it with a tube patch and am still using it.
http://www.conti-online.com/generato...g_2000_en.html