140 miles in one day?

Thanks!... and one more thing, ive got a bit of a crummy seat: some rock selle itallia one with what appears to be a gel gooch spot in the middle, my arse is numb even after short rides. I'm kinda lacking funds but what would be the bestest chepeast seat for a long day of hours in the saddle? (but maybe ive just got a sensitive beehind)

in my experience sore/numb arse is not caused by a poor saddle. But the fit of the bike and the way you sit on it.

If your sitting fairly upright, even with a big cushiony sprung saddle, your eventually going to get numb.

With racey thin hard saddles, sitting upright with your arse flesh being fully compressed into the saddle is just not an option.

You need to have a better balance of weight over the bike, with the weight you do put on the saddle, being taken by the bonier harder parts between your legs (i do not know the anatomical names!-not your nob)

anyway, thats just a tought.