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Old 05-29-2014, 04:54 PM   #1
laulie
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K6 GSXR 600 brakes rubbing.

I have an 06 gsxr 600 that the brakes are rubbing on, by rubbing I mean with the bike on the stands you can try and spin the wheel as hard as you can, the wheel will spin about 1/4 revolution and stop. It is also hard to rotate just by hand.

The bike has a Braking MC6601 master cylinder and new EBC pads.

I have done a lot of research and tried several things, so far this is what I have tried:

Disassembling the calipers, flushing the passages, cleaning the pistons. I've done this 3 times now to make sure there wasn't anything in the lines getting back in them. They have been spotless every time.

Replacing the new cheap pads that I had bought with new EBC pads. The guide pins are greased.

Pulled the master cylinder apart, cleaned the piston and all the passages.

Flushed all of the lines.

Put a run out gauge on the rotors to verify that they are not warped.

I've even read that the front wheel not being centered could cause this, so I tried every way I found to center the wheel, loosening the pinch bolts hitting the brakes then bouncing the front wheel.

Nothing has made any difference at all, I've even had some friends come over that claimed to be experts on bike brakes, lol.

Oh and of course they have been bled about 20 times, using vacuum and conventional ways with the fittings Teflon taped.

I'm really clueless as to what I should even try at this point. If I cannot figure it out by the weekend I will get some 2012 brembo calipers and a new brembo master cylinder. Any pointers on anything to even try is appreciated.

Thanks!
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Old 05-29-2014, 04:57 PM   #2
laulie
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Sorry, did not specify. This is the front brakes that are totally sucking.
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Old 05-29-2014, 04:58 PM   #3
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Nevermined. Didnt finish reading

Could be the axle? Or perhaps one of the forks is just slightly higher then the other.

Last edited by Racerxxx; 05-29-2014 at 05:00 PM.
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Old 05-29-2014, 05:04 PM   #4
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Sorry, forgot to say I did check the axle. I bought the bike new and have never messed with the forks but I will go check just incase one shifted. Good idea.
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Old 05-29-2014, 05:27 PM   #5
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Dont think I read you say anything about the bearings. I know thats super simple but just incase you havnt checked. First thing I would have checked was the pistons as well. Some bikes just have alot of drag, I know mine doesnt spin very much either.

ALso make sure your not over tightening the axle or pinch bolts.
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Old 05-29-2014, 05:37 PM   #6
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I've never had an issue like that so I'm not going to try and throw advice at you. I will say that if you don't make any head way, unless you just have money to throw at it with parts, take it to one of the sponsors like Motorcycles Unlimited, etc. It could be something quite simple and cost you nothing but their time rather than buying hundreds of dollars worth of parts and it turns out to be a improperly torqued fastener or something else foolish. It's happens to everyone and is sometimes hard to notice the small things when your frustrated.

Good Luck!
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Old 05-29-2014, 05:39 PM   #7
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You'll get 10 different answers of what to do and they'll all be wrong. So here ya go...

Remove the calipers and spray them real good with brake cleaner. Remove the anti rattle clips and toss them. Then push the pistons back in with a flathead. Reinstall. Loosen the axle nut a bit and do the same with the pinch bolts. Let the bike off the stand and bounce the front so everything gets aligned. Retighten the axle nut and don't over torque it. Same with the pinch bolts. When you put it back on the stand SLOWLY pump the front brakes. It should solve the issue. Anyone who does a lot of wheel swaps with GSXRs has suffered them same thing and this stupid routine is the solution. If that doesn't fix it your rotor or wheel is bent.

Edit: I see you bounced the front. Try it again. It didn't always work the first time for me.
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Old 05-29-2014, 05:42 PM   #8
laulie
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I understand what you are saying for sure! The wheel is torqued to 72ft/lbs and the pinch bolts at 16 I believe. Patrick is actually the one who installed my master cylinder and did my brakes that last time. They were great.. I just didnt want to take it to a shop over something as simple as brakes.. really not much to them, guess I might have to though.

Racer, I know they should be making contact.. these things glow at night on the freeway lol.
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Old 05-29-2014, 05:47 PM   #9
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cdill35, I did only try it once. Also I did install the clips from the old pads to the new ebcs. I will remove those, try to realign the wheel and post again. Thanks!
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Old 05-29-2014, 08:17 PM   #10
laulie
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Ok, note to anyone messing with the front wheel on a gsxr. Bounce the out of it.. I've wasted 10+ hours messing with brakes and was just about to buy a new system. It spins almost 100% freely. Thanks cdill!
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Old 05-29-2014, 10:36 PM   #11
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As mentioned by Brandt, this is a common issue on the gsxr. When I switched to floating rotors, it eliminated all that bs.

Glad you got it fixed!
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