I came across this footage which I shot at last year’s Paris-Roubaix race. The race is just over 250km and includes 27 cobbled sectors, one of which I was standing by to shoot this. I uploaded my stills of the race last year.
I used my Sony Xperia Z3 to shoot at 120 fps, and then slowed the footage down to 25 fps. The slow motion really captures the hammering the riders on the cobbles.
Note that although it looks like my phone was a little close to the riders in a couple of places, it was actually safely tucked out of harm’s way.
Lots of top riders in the race (although the video doesn’t show some of those further back), the most recognisable to Brits perhaps being Sir Bradley Wiggins at around 3:09.