For a bare bone motorcycle insurance policy the cost for motorcycle insurance for a 16 year old may only be $300.00 per year or as high as $800.00 per year.
It depends on your state and your driving record as well as the insurance company.
I'm not a teenager but I have motorcycle insurance through Geico and pay $590.00 per year for my motorcycle insurance but it's a full coverage policy and not just a bare bones policy.
Shop around and get motorcycle insurance quotes from different companies such as progressive, nationwide insurance etc and you may find a good deal on your motorcycle insurance.