Insurance values on bikes

I am having a bit of an argument with my brokers. I have a 2009 450 ltr suzuki quad with around 30 hours and then my 990 ktm adventure 2009 with 5000 km on the clock. They insist that they have no means of reference to determine book values for the bikes. They advised me now that the quad is valued at 53 000 and the ktm 142 000.

Can this be right. Past experience has taught me that ss soon as i prang either they will miracously find the right values and past premiums paid will be of no consequence…

Thanks guys