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Discussion Starter #1
Okay, I have an 07 600 RR ( the video says 06, ignore it TYPO ) Anyways, My 07 600 rr has 2900 miles, never been down. I just bought it and this rear brake wont give ANY POWER. The bike seems mechanically PERFECT otherwise, ridden by an adult, dealer maintained, he took awesome care of it but this rear brake wont give ANY power. What its doing is giving absolutely NO braking power but maybe 5%... I push down as hard as I can while riding it and still nothing ! the front break is fine and everything else seems fine. I tried bleeding it but with never having done it before I didnt really know what to look for....

WATCH THE VIDEO !!!!

http://youtube.com/watch?v=VrsAA3CcJWg

!! ANY HELP IS GREATLY APPRECIATED !!
 

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ok wathced the vid wanna get a few things straight. there doesnt seem to be a ton of pedal movement, did you take the lid off to bleed it? if not re bleed with the lid off, take the cali of (only if you know what your doing) make sure nothing is siezed. Start with the bleed and post back
 

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Well to start off the rear brakes isn't really going to give you lots of stopping power. But from watching your video I probably guessing you want some response in them at least. You will have to bleed again. Just pump it and hold it down, loosen the bleeder until the pedal goes all the way down, when it's down completely tighten the bleeder but remember to keep pedal still pushed down, then slowly bring it up to allow it to bring in more fluid. Keep doing this till you get the desired response in the pedal. A vacuum bleeder would be easier but this will do. Also if you do go vacuum bleeder route grab some teflon tape to wrap the threads on the bleeder or it will leak air.

EDIT: Also if you don't know already don't let air into the master cylinder, keep that reservoir topped off while doing this, sucks bleeding the air out.
 

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my rear isnt very strong either.
when i ride my friends R6 tho, it locks at the slightest touch.

its just the way it is man.
 

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Who needs rear brake anyway? Thats what I say...

But from your video I say it looks fine, but ofcourse I'm not riding so I'm not sure how it feels.
Try doing this and get back to us with what happens...
Get the bike up to about 20-25 mph and try to stop just using the rear brake.
 

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Discussion Starter #11
THE REAR BRAKE HAS NO POWER... I put all my weight on it with the bike going about 20 MPH and it took about 400 yards to stop.
Its giving about 5% of its TOTAL power.... (5%)
I cannot even come remotely close to locking up the rear wheel !


So it needs to be fixed

Im not mechanically inclined so any step by step instructions would really do me some help !
Pictures, or something... I HAVE NO MECHANICAL KNOWLEDGE AND NO $ to take it to the dealership ! Please Help
 

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Im not mechanically inclined so any step by step instructions would really do me some help !
Pictures, or something... I HAVE NO MECHANICAL KNOWLEDGE AND NO $ to take it to the dealership ! Please Help
If this is true, then how do you know something is wrong?

I had the exact same bike but NEVER tried stopping it from 20mph using only the rear brake. I can tell you that based on "feel" it wouldn't surprise me if mine took 400 yds to stop w/the rear as well.

Why not? you ask. Because, as others have already said, the rear is basically useless. It doesn't offer alot of stopping power and IMO you wouldn't want it to either.
 

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I had the exact same bike but NEVER tried stopping it from 20mph using only the rear brake. I can tell you that based on "feel" it wouldn't surprise me if mine took 400 yds to stop w/the rear as well.
If you can't stop your bike in less than 400 yds just using your rear brake, then there is something definitely wrong with the rear system.
 

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If you can't stop your bike in less than 400 yds just using your rear brake, then there is something definitely wrong with the rear system.
There is something wrong with the engine and tires too because it's not generating any friction.
 

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4 football fields! Seriously? You wouldn't even coast one football field from 20mph without any brake! But I do understand what you are trying say, that your rear brakes don't work AT ALL. But I can't really offer any help but like I said before, who really needs the rear brake anyway?
 

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Discussion Starter #16
Heres What Im Saying

OKAY HERES WHAT IM TRYING TO SAY
The rear brake has NO POWER
on ANY other bike Ive ridden, you can lock up the rear brake at any time and skid the tire...
With this you cant,
I may have exxagerated saying it took 400 yds to stop at 25 mph... but you get my drift...
THE REAR BRAKE SHOULD HAVE POWER, thats why its there...
And mine has none,
Please watch the video on my original post to get what I am saying
The rear brake also has NO PLAY... it should come down about 4 inches with full pressure applies, mine only comes down about 1 inch and gives about 5% of what it should.....
BREAK PADS ARE NOT TOUCHING THE CALIPER....
They are not rubbing, I dont know whats going on !
 

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For one thing the rear brake pedal on a cbr does not move 4 inches - not that I've touched mine in years - but I do rememeber that part, if you bled the line once already the mostly likely cause of failure is one of 2 things - 1) improper bleeding, see the post above regarding using a vac pump or the pedal method 2) the small master cylinder in the rear brake failed (the caliper piston almost never does...) and needs a rebuild, if you truely have no skill and no money forget you have a rear brake for a month or so and take it to a reputable dealer to get it fixed - rear brake is useless anyways the compression on the engine has more braking force...
 

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I've noticed that the rear brake on the 07 is a lot powerful then any other bike I've owned or ridden. I would definitely try bleeding it like others have said.

I actually tried locking the rear tire to test the brakes when I first got the bike and I couldn't lock it up. I tried this past weekend and I got it to lock from 20-30mph just like you were trying to do .

I had the same issue with my old SV1k. Turned out the previous owner must have not used the rear brake at all? It wouldn't lock and the more I used the rear brake the better it got. Almost like the rear pads needed to be broken in.
 

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Alright here we go. Before you go and bleed your rear brake again, try to adjust the brake pedal. It may be sitting too low and thats why you are not getting complete movement. Check your brake pedal and see how it connects to your master cylinder. There should be a nut there that you can adjust. This moves the brake pedal up and down to riders preference.

If this does not work Bleed the brakes again. Here are the instructions.
1. Take the cap off your reservoir. Fill it up with brake fluid.
2. connect a hose to the nipple located on the brake caliper.
3. loosen the nut on the nipple and start pumping your brake lever. You should see fluid come out.
4. Just let a little come out and tighten up the nut on the nipple.
5. Start pumping the brake with the nut tight. You should feel pressure build up.
6. Now with the lever squeezed down, slowly loosen the nut on the nipple. Brake fluid will start comming out. You may see tiny bubbles comming out. This means you have air in your lines and that is not good.
7. Tighten yup the nut on the nipple and repeat the step 5 - 6 until no more air bubbles come out when the nut is open.

Oh and make sure you keep topping up the brake fluid. You dont want it to go low and suck in air from the reservoir.

Hope this helps. Let me know if you have any questions.
 
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