An old dead thread but thought I would share my experience. I have been with USAA since 2004. i already had my SV650 insured with them when I moved back to CA. When I bought my Tuono and called to add it to the policy and drop the SV they told me I was lucky that I was now in CA. There is a law in CA that makes them offer motorcycle insurance if they want to do business here. Apparently they have dropped it in most states. They explained that they get the policies through a 3P (it's through Geico I believe). Anyway for 250/500 comp/collision and full coverage all around I pay $408 a year to cover my 2016 TV4F. My two cars are also insured through them so I am sure that keeps the price down a bit. And my Tuono is just a weekend rider. I have a work vehicle so between my T and my car I only drive about 6000 miles a year.
Other quotes I got were as high as $2,600 a year. USAA mostly rates the bike based on its engine size. I got quotes for the 1290 SDR, R1200GS, and Mutlistrada 1200 and they were all more expensive. Got quotes on the R1, RSV4, S1000R, and S1000RR and they were all cheaper.
No claims for motorcycles or tickets or anything while on a bike. I had a few movers in my old truck in 2004/2005 time frame but those are long gone.