Rear brake noise

Hello I have a blade rr6 and I have noticed at low speeds my rear brake makes a fog horn sound.
Any ideas what may be the problem

Thanks Tony

 

When does it make the sound , when in use or not

 

When using it

 

Probably just the noise it makes because its gripping the disc , check everything is ok with caliper, ,, like mounting bolts and the pistons clean

 

I thought it was the pads so I bought disc and pads .

Might just give them a good clean up and see what happens.
And send the discs and pads back

 

Never noticed the noise on my RR7 because I only ever give the rear a dab if I go in to a corner to hot to help pull her round

 

For some reason I got into a really bad habit of using alot more than I should.
Cause prior to this it was fine