Originally Posted by Nick_RSIFEZ
i've got standard size brakes callipers but have drilled & grooved discs & green stuff pads.. these worked really well for about the first week, but now the discs have warped and i get an annoying vibration when breaking, the discs are only couple of months old! going to go for cossie breaks next i think!
thats what happens when u use green stuff pads. It's very very very common. Use ferodo or mintex.