Nice, yes, but I've managed to ride the PX over everything so quite doable. The descents weren't as steep as a lot of British roads, though they were longer. Could pad out the brake levers a bit to help if it became an issue. Now I have the 4SD though I'll not bother trying to fire up a TT bike for it. It's cheaper too. Not sure how comfortable I'd be leaving the £££ Shiv outside shops :)
Sure, I've been doing UK audaxes on TT bikes for a few years (my plan was to use one for LEL in 2013 but that didn't happen). Going up is fine - just a question of gears - but I wouldn't fancy it for a half-hour alpine descent at night when sleepy!
I don't really get dozy on descents, usually just flat bits. I might lose a bit of time on descents having to brake earlier without the discs but the rest would be OK.
Nice, yes, but I've managed to ride the PX over everything so quite doable. The descents weren't as steep as a lot of British roads, though they were longer. Could pad out the brake levers a bit to help if it became an issue. Now I have the 4SD though I'll not bother trying to fire up a TT bike for it. It's cheaper too. Not sure how comfortable I'd be leaving the £££ Shiv outside shops :)