I'm definitely in the clyde club at 255. At 80psi even the substantial gaps in the asphalt aren't all that rough as long as I see them coming and pick my butt up. I read a lot of statements about bigger tires being even more efficient than skinny tires when run at higher pressure, but they're never rated for high pressures like skinny tires. But the consensus here is unanimous that there's no reason to go higher than 80psi, so there I shall remain.