I don't think any insurance is required at all. I'm 100% positive full coverage isn't required. It's one of the main reasons why I bought a sportbike instead of a car a little while back. It's the law to have full insurance on a car.

I only carry Liability Coverage. Doesn't cover my bike against theft or damage, but I feel good knowing I have it in case I damage someone elses property. I'm 17, and it only ran me $537.00 for a full year. Seems worth it to me.

Most of the time the place that finances your bike won't require full coverage on your financed bike either. I know Suzuki and Yamaha don't. Not sure about the rest. I got a loan note on a brand new Gixxer, and they Suzuki didn't require full coverage.