Reply #53: I've gone down going considerably faster than that without serious injury

[ThomWV]

and without a helmet too. You lose a lot of skin and it hurts like hell but you can go down at high speed and not break anything - and there's no reason to ask me how I know. I also know its quite possible to go down at relatively low speed and break lots of bones. No need to ask me how I know about that one either.