[radiowave]

To some extent the tilting was a side-show. It was the hydrokinetic brakes which really allowed the train to travel faster while still meeting the stopping distances necessary for the conventional signalling used on the line.

[ColinWright]

While the brakes are important, the tilting is most definitely not a side-show. I've been on a train when the tilting is not working, and the lateral forces are significant. They make it unpleasant to ride, and impossible to work. Certainly drinking coffee is no joke.

[radiowave]

I stand (or preferably, sit) corrected.