This article is from the How to Become a Motorcycle Roadracer FAQ, by Duke Robillard duke@io.com with numerous contributions by others.
No.
That's a little extreme, but not much. Some people do get special
theft insurance if the bike is really valuable (like a 916 or RC45).
There's no such thing as liabilty insurance on the racetrack. If
somebody hits you, you might be able to yell at him, but he's not
paying to fix your bike. And for God's sake, don't get a lawyer and
sue him--that will be the end of amateur racing. There's no such thing
as collision insurance either. If you slide your bike into the wall,
you buy the new front end yourself.
 
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