Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Of the thousands of fatalities on the road due to head injuries, how many involved cyclists, and how many of them were not wearing helmets?

Cross posted from another thread:

There were 107 cyclist fatalities in the UK in 2011.

Using "thousands" may not technically be untrue but the most obvious reading of that particular sentence implies that , "Cycling is a great way to stay fit" & "each year thousands die on Britain's roads as a result of head injuries due to road traffic accidents" are referring to the same thing.

It's worth noting that I have no idea how many of those 107 were wearing helmets as I cannot find the data.