Most in one day ?
Probably no more than 70-80 miles, in jeans, on a Selle Italia SLR saddle, my back end held up pretty well.
Interestingly I was with a bunch of friends (London to Brighton annual ride here in the UK) and they all went for padded Lycra shorts, gel seat covers and so on, I tried one of the covers and it was like sitting on Jelly (Jello=USA?).
At the end of the day they were in a lot of pain due to sore arses, I held up just fine. I doubt I have a stronger backside than anyone, so I presume it was something to do with avoiding all that padded/gelled crap ?
Perhaps it discourages you from naturally moving yourself around on the saddle, and you tend to sit on one position for the whole ride ? Just a guess.
Last edited by tynan; 05-18-08 at 09:11 PM.