Originally Posted by
dmanthree
I can't watch this at work but all the videos I've seen showing how disc brakes don't cause injury only rest something on the brake while the wheel is spinning...they never jam something relatively soft the size of a leg into it with the same force that a body falling on a bike would be...while it is spinning.
I ride disc bikes but don't ride with others and don't race, so I only come at this from a curiosity perspective, but the youtube stuff I've seen hasn't really tested it like it should be tested.