That might be the main trick for beginners but at intermediate speeds and above the main trick is really learning the tracks. There's at least one corner one each track that is extremely hard to 'read' at top speed on the higher levels, and you need to automatically know where to enter and exit to avoid crashing.
Leads to the classic wipeout feeling of "I can't believe I butchered that corner on every single lap!"
the main trick really is anticipating the turns, It's quite different than that of road racers. You brake and accelerate in those where in wipeout you never take your foot off the gas.