Yeah you never know....those pieces have a double spine and a very slight curvature, so it could be a massive pull-up. I kinda doubt it though.
EDIT: They're slightly banked though. Hmmm. This has me as interested as I was in figuring out the riddles about Fahrenheit.
EDIT again: Holy crap, look how many holes there are for track-connecting bolts! That's gotta be a high-stress area.