Front brake singing

[Sullybiker]

Morning all,

This isn't a huge problem, I could totally live with it, just wondering if anyone has any tricks to stop it or quieten it. It might just be a characteristic of these pads.

My front brake has started emitting a groan when slowing to a stop, like a freight car when the brakes are applied. I've had this in the wet on my other bikes, but my TT250 has started doing it. It's like the new Bonneville