Chinese brake rotors

[BillyJ]

Would you use Chinese brake rotors?

https://www.ebay.co.uk/itm/Front-Brake-Disc-Rotors-Fit-SUZUKI-GSF-600-Bandit-2000-2004-SV-650-99-02-Golden-/231745075421?hash=item35f51538dd:g:ApIAAOSwYHxWPfEm

I think my bandit rotors are not completely flat.

I'm going to fully service/refurb all the calipers anyway but there is a small drag once every revolution of the front wheel making me think there is either corrosion under the rotor clamping face... Or a rotor isn't flat.
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Had: '06 CBR125R + '01 GSF600 + '07 SPRINT ST 1050 + '80 CB250 RSA + '93 Ducati 900SS
Have: '13 GSXR-1000 + '01 CB500S
"The aryan confuser"

[ragamuffin]

Hi.

No. They will rust within a week and likely to warp or snap.

Buy replacement products from a breaker or buy new!

Regards
T
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I don't snore. I dream I'm a motorcycle.
Suzuki gn125 (dropped valve) Sym Wolf 125 (sold) sky jet 125 cbr repsol replica (sold) Suzuki RGr 125 (current)

[BillyJ]

[ragamuffin]

I've had Chinese 125 and Chinese smartphones.

Chinese products are poor quality.

Them brake discs arnt even flat. There poking out from the wheel. How hard will you brake before them slopes bend and snap.
Would you trust them when your trying to stop on a pin from 140mph?

My advice, stay away from anything Chinese.
So many countifits.

Regards
T
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I don't snore. I dream I'm a motorcycle.
Suzuki gn125 (dropped valve) Sym Wolf 125 (sold) sky jet 125 cbr repsol replica (sold) Suzuki RGr 125 (current)

[linuxyeti]

Ahh, so, which chinese 125? I've had a few, can't say I've had any real issues. However, I do agree, steer well clear of an iphone

Serioulsy, I've owner various chinese motorbikes, from 125's upto the CF650TR. Not had any problems that have been worse than any of the japanese and british bikes I've had, and I ride my bikes in all weathers.

As to what you're looking at, I honestly couldn't tell you, as I haven't purchased those particular items, but based on my experience so far, I wouldn't be overly concerned.
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[Beehive Bedlam]

There's a chinky wavy disc on the rear of my FZS the SBS pads I've got in the caliper have eaten it. It has got a deep ridge/lip and needs replacing.

The OEM discs up front are fine and have covered more miles I assume.

If you can't afford OEM buy a well known brand such as brembo.

[ragamuffin]

I've had a sky jet and a sym

They use inferior metals, paints, plastics, even there nuts and bolts fk up after one use.

Everything I've bought like rear lights, footpegs, brake/clutch levers, horn switch everything has failed after one down poor or even standing on the footrest and it snapping off.

Everything I buy now is oem or e marked.

My safety is not the Chinese concern.

Regards
T
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I don't snore. I dream I'm a motorcycle.
Suzuki gn125 (dropped valve) Sym Wolf 125 (sold) sky jet 125 cbr repsol replica (sold) Suzuki RGr 125 (current)

[Polarbear]

I've never used Chinese rotors. I know someone who has and so far hasn't had any problems but then I have heard of Chinese discs warping with very low mileages.

While I would happily fit some parts from China I don't think brake rotors would be one of them. However EBC ones are double that price so pays your money and takes your choice.
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Triumph Trophy Launch Edition

[Jmh600]

I've got a pair on the front of my gsxr (I believe! I'll have to check they're not the real Armstrong ones with that pattern) and they seem great to me! I'll keep you informed over a few thousand miles though

Joe
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Jmhmotorcycles

[Robby]

Get the discs off and sort out any corrosion on the wheel before you think about new discs.

If you do need new discs, there are often some fairly good British-made ones on ebay for reasonable money. Far cheaper than EBC.

[linuxyeti]

[chris-red]

[BillyJ]

I was planning on looking for corrosion under the discs first, I'll still do that

[Vincent]

Imported aftermarket discs can be of varying quality, major complaints on the poorer ones is either that they warp or wear out in a fraction of the time of an OEM one. Personaly, I'd rather use an original good, straight 2nd hand disc with plenty of meat left than take the risk of using a cheap aftermarket one. The problem buying used is making sure it's straight. If buying off eBay, I'd ask if it was straight first and then ask if you can return it if it's not.

I don't particularly like the look of wavey discs either.
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Space Is Deep

[Old Git Racing]

Personally no, having experience of Chinese engineering and metals in other areas than bike bits. When it comes to critical parts it's not worth it to me to take the chance if there is a doubt about quality.

OGR
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2022 Tiger Sport 660 2019 Street Twin 2003 K3 gixxer 1000 1998 Srad 600 track hack

[Wafer_Thin_Ham]

No, for all of the above reason. Galfer or something for me please.
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[Doovy]

I had a set of cheap wavy discs on my CBR600 RR for about a year, similar looking to the ones you've posted.

They worked, looked good and didn't rust/warm under my ownership.

The only thing I would say though, is that they seemed to have maybe only 3/4 of their stopping power in the wet (heavy rain) as they did in the dry.
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Yamaha RXS 100 > Honda CD 250 > Honda Hornet 600 > Honda CBR 600RR > Yamaha RXS 100 > Kawasaki ZX6R J2 > Yamaha FZ1

[Snod Blatter]

The TRX had cheap Kagizume discs on it when I bought it, after the second winter there was so much corrosion around the semi floating bobbins they warped and couldn't be made to sit straight again. They were also heavier than the OE discs, but worked just fine when they were straight.

After a while Kagizume stopped making round discs and only made wavy ones, most without their name on. Those look a lot like what they make now..
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1994 CB250, 1984 CBX250RS-E, 1989 K100RS, 1995 TRX850, 2016 Z250SL

[Tiger900]

Two years ago I purchased two wavy rotors from Ebay for the front and a plain disc for the rear both were Kagizume make as the Triumph ones were silly priced (£750 for 3).
*** The Good ***
They are really cheap and looked good for a week. They brake and stop you fine and passed an MOT.
*** The Bad ***
They were advertised as stainless but after two weeks rusted quickly so looked like they were years old.
Within two Months the front discs warped slightly but they actually worn flat again after 6 Months of use. The rear disc bolts had to be filed shorter as the disc was slightly loose due to slight spec difference in thickness. I used Hammorite black on the rusty part of the disc.
*** The Ugly ***
My rear disc snapped last week in one place and cracked at the opposite side and had a 4mm gap once I took the bolts out. Luckily it did not fall in half.
The disc has not had much wear.
It looks like the disc was permanently stressed in manufacture causing it to be a time bomb. It is so stressed that I cannot manually close the 4mm gap again with brute force.
Bottom line I will never buy Kagizume discs again. Mine was dangerous and very poor quality.

[Vincent]

Are discs even made from SS at all?

To be fare to Kagizume, if they deserve it, a lot of these parts are coppied by other manufacturers, or sold privately by the people making them for companies like Kagizume in the first place.....they even copy the cheaper copies now, just to use the name. Not easy to spot a fake disc when new.

If the problem disc is warped rather than warn low, you can get them trued, 60 knickers a pair at this place:-

https://www.motoliner.com/motorcycle-brake-disc-straightening.php

I wouldn't want spend more than £20 to £30 on a used one, depends what bike and how rare it is. I paid quite a bit for a rear CB-1 disc just because there wasn't many about with any meat left on them when I needed one.
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Space Is Deep

[pompousporcup...]

i have a china disc on my gpz. no issues with rusting over (unless the salt roads were wet on the ride in that day in which case minor spots after a few hours) and no cracking or warping of note after a few thousand miles now and i only use the front brake due to shitty availability of good non-warped rear wheels.

i'd buy one again as it was £40 delivered from china land vs the 90 delivered for one here. In hindsight i should have bought 2 at the time to save postage.

some stuff from china is crap. not all of it

[A100man]

[monkeybiker]

I had Chinese discs on a cbr600f and they warped after one trackday.

[sickpup]

[Pete.]