Me and tom spent about a month looking for insurance and found carole nash to be cheapest for us. Firstly me:
17 years old, 1 years ncb, bandit 600 (unfaired), R reg, insured value of £2600, think im allowed to do 6000 miles a year, aftermarket can declared along with other modifications, restricted licence, kept in shed, datatagged, urban area
£547 fully comp
And my friend:
17 years old, 0 years ncb, honda cbr 400 nc29 gull arm, J reg, insured value of £2000, 6000 miles a year, standard bike, restricted licence, kept in garage, datatagged.
Old address, semi urban area
£570 fully comp
New address, rural village
£700 fully comp
They made him pay more when he moved
Rele depends on your area, but id expect to find something around that price if you look hard enough.
Another couple of good ones for us young un's is h&r (insurance 2000) and motorcycle direct.
Hope this helps