Your pads/discs could be contaminated or glazed. get the pads out and go over lightly with a bit of wet and dry (dry) to get the glaze off and you might want to go over ever so lightly the discs with some very fine wire wool then clean them with some brake cleaner. Job done.

Cheers
Ben

I'll second this. I used it on my brakes plenty of times over the years.
JUST DONT GET IT ON THE DISCS, otherwise you wont stop!

What?


You mean the SV comes with a back Brake :shock:

You did transfer the anti-squeel shims to the new pads, didn't you?

I had this on my back and front brakes and I found cleaning up the pad with a bit of wet'n dry or rough brush, then little copper grease on the back sorts the problem out no end...
This was due to the bike sitting up for a while and developing a 'fluff' problem.

Check the anti squeel plates (thin metal strips that go between the piton and the pad on the side closest to the front of the bike) are in. This will "toe in" the pads. Also lob copper slip on the back side of the pads. Should sort it