This looks to be a couple years old already, but i wasn't aware of such a modern accident study. I thought the hurt report was the last in depth study and then there was the fell study which was done with police reports, but beyond fell and hurt (resisting the pun with all my might) this study refers to the results of several studies in the 80s and 90s. the introduction is a little far fetched (read skewed against the modern motorcyclist) as far as the researchers point of view, but the results they are drawing from are interesting and many (so
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i thought it would be of some interest here anyway.
-KK