Definitely a classic Classic yesterday. My L4/L5 disc was twinging in sympathy as MvdP went like a rocket down the cobbles.
Weird thing is, as an L4/L5 discetomy-ee myself, I don’t mind the bumpy stuff on the bike, I think the riding style over cobbles/rough gravel (big gear, GLUTES, hover) seems to both protect my low back, and to some degree highlights what’s wrong with my low back the rest of the time, i.e. my glutes aren’t doing anything!
Same for some of the local 8-10 minute efforts that I do on the road bike as long intervals, head down, aero pose, pushing hard, all the aches, pains and misalignments seem to go away. Shame it’s an effort I can only maintain (at best) for 4 x 8 minute efforts before staggering home! I imagine after 270km of it I would be a limp noodle 😂