Brain injuries in motorcycle accidents can involve severe trauma if the rider's head makes hard contact with the other driver's vehicle or the road. (texaslegalgroup.com)
He isn't allowing a lot of hard contact, if you catch my drift. (sbnation.com)
Aside from the usual airbags that cover all possible hard contact points in a crash, with the exception of the passenger's knees (only the driver's knees get airbag protection). (drivemag.com)