Bike Insurance

Does anyone know a good/cheap bike insurance company?
My premium will go up from £8 a month to £45 if I add my new bike! Seems a bit pricey!

We were with marks and spencer but i think they've changed to a service through aviva. they do bikes via exceptional items. i think you can go up to £4k each. best to check though....It's always gonna be more expensive than general contents insurance but it's way cheaper than BC or other bike-specific insurance

luke