Braking Vibration

[angus99]

At the last service (approx. 200 miles ago) I had new Front pads fitted as the old ones had cracked. After the service the brakes felt less effective than with the old pads but I assumed that it would improve once they bedded in. Also noticed that when under breaking at above 50 mph I get some vibration through the steering wheel. Could this be caused by the pads (i.e. wrong ons fitted) or is it more likely that the discs also need replacing?

[TVR keith]

If there is a lip on the disc due to wear then until the new pads have worn into this shape I expect you would get some vibration. The discs really should be skimmed/replaced to overcome this.
But I think it's a matter of how much of a lip there is (if that's the problem)