I might add I was really suprised by the experience at first. It might not look that fast but even at 50km/h the g-forces acting on the bike and your body are enough to do some funny things to your body. If i leaned forward when entering the bank my body would be forced down like the hand of god was pushing on my neck. Then if you kept your head up you could feel the pressure inside your head pulling down. I haven't experienced that since the last time I was in an aeroplane and we pulled a constant 2G turn.
I wouldn't hesitate to say you can pull over 1G in the turns of the velodrome on a cag even. I'd highly recommend anyone try it to experience the sensation. It feels truly wacky.
Just remember to TURN! I've watched another rider enter form the bottom of the bank ride straight up flat out and nearly launch over the wall in another video.

You know who you are.