rear rotor tiny cracks

[tastethefloor]

hi guys,
found some tiny cracks on the rear disk, like this:

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pratically in every hole of the disk

Do I need a new one?

[VTR Phoenix]

Are they cracks or scratches? Cracks then yes get a new one before it shatters, it has probably already scored the pads.

[tastethefloor]

Are they cracks or scratches? Cracks then yes get a new one before it shatters, it has probably already scored the pads.

How can I know if they are cracks or scrtches ?

[VTR Phoenix]

If they are cracks then they would be on the other side of the disc as well.

[MK_WF]

Pretty common in high performance applications like SuperMoto.
I have ridden quite a while with a much worse front disc.
It doesn't tear apart immediately, but if it does you'll likely crash. In Germany you'll loose road approval when the TÜV notices that damage.

I'd have a look for a new or used one and replace it these days without any hurry.

[VTR Phoenix]

Not sure if its just the picture but pinch the disc near the centre run your finger and thumb towards the outer edge of the disc, does it have ridges across the face of the disc? It looks like it could do but not sure, if it does then its time for a new disc also.

[tastethefloor]

Pretty common in high performance applications like SuperMoto.
I have ridden quite a while with a much worse front disc.
It doesn't tear apart immediately, but if it does you'll likely crash. In Germany you'll loose road approval when the TÜV notices that damage.

I'd have a look for a new or used one and replace it these days without any hurry.

I'm going to replace it with one brembo
honda oem sucks

[tastethefloor]

Not sure if its just the picture but pinch the disc near the centre run your finger and thumb towards the outer edge of the disc, does it have ridges across the face of the disc? It looks like it could do but not sure, if it does then its time for a new disc also.

no ridges across the outer face

[StuartWags]

seen a few like that

[vardypeeps]

Yeah, happened to mine yet the cracks were a little larger.
Disc had worn past ideal thickness and was getting too warm when used