i would have to go with the cct, i know nothing about bikes at all, but that is exactly the same noise mine was making for about a week or so before it went pop (front), hope its not, but at least you know there is somthing wrong before its somthing gone wrong... good luck!
Hi Kitch,
Just seen your vid and that noise sounds just like mine did, I replaced both cct's and that cured it.
So in my opinion I think it is a cct!
I hope this helps, and that you get it sorted soon.
just seen this my storm has exactly the same noise, did you find out what is was. very intermittent may only do it once on journey to work 10 miles through traffic.and for only short period of time.