Hey my bois
I want to do the London>Paris>London (400mi, 640km) thing this Spring but I've never done anything even close to similar to that. I'd like to do it in a week in total, so that would average around 80mi/130km a day for 5 days.
How should I train for this? I just bought a turbo trainer, and I've never trained for anything, I just commute and do some CX-ish fuck-around-ing on the occasional day off (getting my ass muddy basically).