I bought these brake pads from ebay, ( Shimano Deore SLX BR M800 M965 M966 M975 Semi Ceramic Sintered Disc Brake Pads £11.78 for two pairs) i thought i would give them a try as they were cheap, they are no better than the originals for stopping power but they seem to have stopped most of the squealing, when i change them again i will go for the Sintered pads instead of the Ceramics pads as i think they might have a bit more stopping power. or rub my trainers on the back tyre like the kids do ;-)