[Bobblehead]

ESPN has an article about contract language and what is changing to minimize/prevent these types of accidents. link

Roethlisberger's contract doesn't specifically forbid him from riding motorcycles. Most don't. However, agents say his accident might encourage teams to put specific language about motorcycle use in more contracts to protect their pricey investments.

From an ESPN interview with Andrea Kramer (2005):

ESPN: How much do you view riding a motorcycle as a risk?
Roethlisberger: I think it can be a risk. It depends on how you ride. I don't ride a sport bike. If I'm riding a sport bike and trying to do tricks, and going 200 miles down the highway, that's probably pretty stupid. But when you're riding a Harley or a chopper and you're riding with a group of people and you're not on the highway and you're cruising, you're relaxing. I don't think its as much of a risk as people make it out to be.

He crashed a 2005 Suzuki GSX1300R aka Hayabusa:

It has a 1299 cc inline-4 engine typically rated between 150 and 180 bhp (110 to 132 kW), and was consistently tested as the quickest and fastest production motorcycle in the world circa 2000

Oh, and from another ESPN.COM article today:

Ben Roethlisberger might have been riding without a license to drive a motorcycle when he was involved in an accident Monday.

Sources told the TV station that Roethlisberger had a license to operate a car but has never had a Pennsylvania motorcycle license.
Roethlisberger had a learner's permit to operate a motorcycle that expired March 29 but had never taken the written and driving tests for a motorcycle license, a source told KDKA.

Doesn't sound like the sharpest knife in the drawer.