Here is some really poor research:
“Although there were high proportions of ankle sprains in hikers and arm fractures in mountain bikers, with one study of the latter reporting more than half suffered head injuries, highlighting the importance of a good quality helmet.”
Almost half suffered head injuries? HALF?!! And that highlights the importance of a good quality helmet? Do they know that a good quality helmet doesn’t protect you from Chronic Traumatic Encephalopathy and other soft tissue brain injuries? Seriously flawed research here. And shoulder injuries are the most common injury in mountain biking which is a far more serious injury than an arm fracture with long heal times and often never completely healing. More on mountain biking injuries.
Rethink Warburton Mountain Bike Destination 