Lude Generation

The front brakes on our Lude judder, if only slightly and occasionally. The discs feel a lot smoother than they look in these pictures, and have enough meat on them; and there's plenty of pad left.
However, I did notice some radial markings. They're not scratches or cracks - in fact, you can't feel them even though you can see them.

Any ideas?

I don't know. Sometimes I feel like jacking it all in, moving to Peru and farming llamas.

But if you mean the discs, the marks might have been put there by a very small and slightly stupid alien intelligence?

Just a thought. I'm not saying it's right.

Maybe a manufacturing Quirk? A ridge from when they were forged or cast, which though machined off is in the grain of the metal and is showing through?

Edit: Good luck with it anyway.

The first pic just looks like the remnants of a brake that seized on. If it judders then the discs are warped and need replacing

I've seen this plenty of times. Always put it down to residue from the brake pads

Yep, normally residue from the edge of where the pad friction material has been sat after you've parked up with the brakes really hot.
Those particular marks should disappear after a short time (though you might get others that replace them )
If not, it does suggest a manufacturing problem in the disc.

Discs don't warp. People just seem to diagnose that as an issue for reasons I can't understand.
It's uneven pad material distribution.
That looks like pad material for hot braking and holding the brakes at a standstill for extended periods of time like traffic lights.

Food for thought. Thanks.

I don't recall getting the brakes particularly hot and I always use my handbrake at traffic lights.
However, a couple of replies on the ATR forum agree with the pad material theory. One respondent even provided a useful link: http://www.essexparts.com/learning-cent ... ost/Bed-in

Perhaps I should try a bit of emery paper?

I agree that nail care is important, but you really ought to focus on the problem.

Sorry. I'll shut up now.
Again, hope you get her sorted relatively cheaply.