I need a tire suggestion. Have been doing some rural rides that involve multiple miles on a rough gravel road (large gravel). I tried 28 Paselas, and blew out the sidewall on the second ride. I am looking for a tire with a tough sidewall, but I don't want to go too much above a 28 as I do long paved rides as well.

FYI - the bike is a salsa casseroll.

I know this is technically not a commuting question, but it seems the folks here put tires through a lot. And I commute some too.

Thanks