Pro-cycling thread

Looks that way, just by what he said post race:

http://www.cyclingnews.com/news/van-aert-bonks-at-end-of-rough-paris-roubaix/

"When I switched back to my spare bike... I still don't know what happened but in the first corner after being on the new bike I slipped away big time. Was there sand, I don't know. It was a big blow. The big ring of that bike was wrecked so I had to continue the rest of the race on the small ring,” Van Aert said, with a laugh. “Luckily the small chain ring is rather big in Roubaix but it wasn't ideal.”