Warped rotor. Turning them round to reverse the warp.

[cyberglass]

Vstroms got a warped rotor its not causing any pulsing as its warped the full diameter of the disc but it is causing the lever to come near to the bar as the pads flex the disc when the brakes are applied. Before i shell out £200+ for a set of discs im Planing on removing them turning them over and putting them back on.

Has anyone tried this and will it solve the lever travel problem with the disc warped the oposite way to what they are now?

Thanks
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DL650 Vstrom 2004
DRZ400S 2003
Yamaha R1 2005

[Wonko The Sane]

I know my front brakes are marked with a rotation direction, is this not the case with your bike?
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[Nope.]

I'm not quite sure what you mean, but whats the degree of run out? If it's not too horrendous and you've got a mate with a lathe you could always get them to true it up, but again it depends on the degree of run out and how much disc you'd have left at the end.
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[redeem ouzzer]

Workshop motherfucker....
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Be a REAL MAN!

[MarJay]

The warp will still be there... I don't see what this would achieve?
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Landy10]

[-]

Turning them around won't magically fix the warp will it?
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TZR250 2MA road, TZR250 1KT road, TZR250 2MA race, TDR250, YZF-750R Boost colours.
Jaguar S Type 3.0 V6 Sport R, VW Transporter T5 GP LWB Shuttle 140ps DSG.

[Bikeless]

How do you know they are warped?

[DrDonnyBrago]

Warped all the way round doesn't make much sxense, do you mean your disc is bowl shaped now? i.e. the outer rim isn't in line with the inner rim?

[Johnnythefox]

I guess that you don't feel that your life is worth a couple hundred quid?

[chrisdubya]

Put it on a table and smack it with a hammer to straighten it out. HTH.

[Pete.]

This is like asking if it's possible to un-paint a wall by using a clean brush.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Polarbear]

[nowhere.elysium]

This is possibly one of the most retarded things I've ever read.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[duhawkz]

[Fisty]

[Bozzy]

Put a set of discs on it you bell
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2004 SV650S >>> 2009 Street Triple R

[kgm]

If the disks are warped then replace them.

How do you know they are warped - have you measured?

The excessive travel could be caused by a few other things. The primary ones to my mind being air in the system or crap behind the dust seals causing them to grip and pull the pistons back in too much. If you take the pads out and pump the pistons out the latter will become obvious.

[Paddy Blake]

[UncleFester]

Bodyguards parent?

Seriously though - just buy new stuff.
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2017 Z1000SX

[pompousporcup...]

warped the full diameter of the disc...

[Doovy]

[natefz6]

Warped all the way round like this?

https://sc02.alicdn.com/kf/HTB17XaNLXXXXXahXpXXq6xXFXXXv/motorcycle-brake-disc.jpg
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"no I didn't steal it that's just the way I ride"

[weasley]

What I'm suspecting is that the disc has become conical, perhaps because of a stuck brake piston meaning it gets pushed from one side (hence the "pads flex the disc when the brakes are applied" comment). He's perhaps looking to use these asymmetric braking forces to flatten the disc back the way it came.
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Yamaha XJ600 | Yamaha YZF600R Thundercat | KTM 990 SMT | BMW F900XR TE

[Pete.]

If it's getting dished then it should spring back when the laid is off. If it doesn't then the deformation is permanent.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good