Have just fitted Black Diamon x drilled and grooved disks and ebc redstuff pads.

Work great by lots of vibration through steering wheel when gently applying at anything over 100

I dont think the disks are warped as they have only been on for 200 miles and cos of the weather i havent really given them much stick. I assume if they where warped they would also judder at lower speeds?

Disks are fitted left and right in correct rotation as advised on packaging.

Any ideas?

 

check your bshes etc
if not sounds like faulty discs

 

Good point, grooves could be vibrating the bushes, although havent has any knocking or other suspension problems suggesting bushes.

Cheers

Manny

 

could also be a sticking piston in the calipers, check those too for movement- before it warps the disc...

 

I'd say its warped discs............

I've had brand new ones that have been warped from day one........ saying that best of luck getting replacements - you pay to send them back they check them and say 'there within tolerance'