Replacement brake Discs/Rotors

[joezxr]

My front brake discs on my 03 zx6r are warped and jolt on and off when braking heavily so they need replacing.

Iv never had to buy new discs before so im not sure where to start, i dont mind spending a bit of cash but i cant afford brembos lets put it that way

There are a few sets on eBay called armstrong from japan for around £150 which i can imagine will be terrible?

or i can buy EBC ones at around £250 for a pair which iv also heard are not great...

or i can maybe get some low milage OEM ones from a newer zx6r (thats if they are all the same fitment???)

does anybody know what the best option would be for me?

many thanks!

[MCN.]

OEM every time. I've not tried a set of discs that match the all round performance of the originals. You might even find them cheaper than EBC if you are lucky.

[kramdra]

If its not result of a disc lock I would first give them a good clean, make sure all the bobbins are free so the disc can move. Also check for cracks which commonly spread out from the drilled holes.

Then I would get a DTI and measure it before buying new OEM discs.

[joezxr]

[stinkwheel]

I've seen people tighten a nut and bolt through a bobbin then get ther end of the bolt in an electric drill and spin them while spraying brake cleaner on.

Armstrong discs are ok.

OEM discs are best.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Vincent]

Original discs for me too.....I tend to go for used ones with plenty of meat left on as they're a fraction of the price of new.
Deffo check the bobins first though, can you see any warpage when you spin the wheel?
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Space Is Deep

[joezxr]

Just checked the bobbins they do look pretty caked up!

Also just tried to give the old tighten a bolt through it trick a go and none of them will turn not sure if all discs bobbins spin???

[Vincent]

If they're big round silver things, they move. Did you give them a good soaking with brake cleaner? They don't like to move if dry. Don't be tempted to use anything but brake cleaner as it's hard to get it out again and, as the wheel spins up, it'll get chucked on the pads
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Space Is Deep

[joezxr]

[kramdra]

Ive also tried cleaning mine, than gave up. My bobbins couldnt be turned with a bolt and are pretty stuck, but since they are not warped Ive been quite happy to ignore them

Bobbins have a clip and are removable, which will separate the disc from the inner. I don't know if thats a good idea.. but I probably would. The clips should probably be replaced when disturbed, and in the same alignment.

[sickpup]