Interestingly, my backup tire is a Pacela Panaracer which weighs 360 grams. I got it for the simple reason that a few people liked it on BF and Nashbar was closing them out for 5 bucks. I would have gotten 2 or more if they hadn't been gumwall.

I can't even believe that I'm weighing tires. You're a bad influence, mister.