USAA offers "grandfathered" policies. If you have an existing (powersport) policy they will continue it through an underwriter. If not they will not start a new policy on "powersports."
Everyone don't flip out and think USAA is going to cancel your existing policies.
BTW... if you are going to sell a sled or bike and want to drop your coverage through USAA.........DON'T
Drop the coverage to storage status or insure a buddies machine or buy a bike frame, etc..... This way you always have a policy on a bike or sled and will continue to have great rates through them. If you drop it do not expect they will allow you to start a new bike or sled policy.
Just some clarification...