Issues fixed under warranty

[toast449]

I'm officially a study case. 20.000 km, 5 front brake disc sets replaced. Not my dealer or Husqvarna understand what's going on. I don't wash my bike immediately after intense braking, and it's not like I ride that harshly. They even swapped the whole front rim last time, so now we're trying a completely different brake disk manufacturer. Will report back once they are installed and tested for a few thousand kms if this finally solves anything

You have any machinist measuring tools? If you put a dial gauge on a magnetic mount on the brake caliper and set the tip of the gauge against the rotor I would be very curious if you see zero runout.

 

[Tom]

I'm officially a study case. 20.000 km, 5 front brake disc sets replaced. Not my dealer or Husqvarna understand what's going on. I don't wash my bike immediately after intense braking, and it's not like I ride that harshly. They even swapped the whole front rim last time, so now we're trying a completely different brake disk manufacturer. Will report back once they are installed and tested for a few thousand kms if this finally solves anything.

Damn, this is beyond disappointing! I do really hope they'll get it fixed! The Brembo discs are working absolutely fine.

 

[Tom]

You have any machinist measuring tools? If you put a dial gauge on a magnetic mount on the brake caliper and set the tip of the gauge against the rotor I would be very curious if you see zero runout.

Since the brake discs are floating, a minimal tolerance shouldn't really be relevant at all.
I suspect that the material of the Galfer brake discs is simply faulty/unsuitable and warps due to the heat during braking.

 

[toast449]

Discs are floating for expansion, not transverse motion. I'm wondering if the hub isn't perfectly perpendicular to the axle. You wouldn't notice it as a wobble in the wheel with a tire on it, but a couple thousandths of wobble on the disc vs pad face would be an issue. If they machine a batch with an axle error it would explain why some people have had this issue.