i'm trying to (finally) register my bike with ETA insurance but I'm confused by the frame numbers, I can't work out which one I should use.
It's a Bianchi frame, and I'm sure on my last one it just had the one number.
I think it should be the WBK***** number at the top, but what's the other long number for? and what about the number in the middle under the cable guide?

It's a Bianchi frame, and I'm sure on my last one it just had the one number.
I think it should be the WBK***** number at the top, but what's the other long number for? and what about the number in the middle under the cable guide?
