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Old 12-07-2012, 10:05 PM   #1
thisisareallylongusername
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k6 600 rear brake problem

Hello today i flushed out my old fluid , took off the line going to the rear master, and took the reservoir off the rear master to install a junction valve.I then got realized I had to be somewhere soon, so i decided to put everything back together. Then i started bleeding my brakes and at first there were a bunch of air bubbles, and after a couple of rounds of new fluid for the reservoir the lever started getting better. Then out of nowhere the lever is really stiff now, I dont know why, but it doesnt feel normal, i need help, havent tried to ride the bike yet, dont want to risk it.
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Old 12-07-2012, 10:13 PM   #2
cirsory
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Re: k6 600 rear brake problem

does the wheel move normally? if it does, take it for a spin, you have front brakes.
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Old 12-07-2012, 10:26 PM   #3
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Re: k6 600 rear brake problem

yes the wheel moves normally.
The only thing that is red flagging it is the rear lever is very stiff, if i push on it, it'll travel about .5 inch only
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Old 12-07-2012, 11:23 PM   #4
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Re: k6 600 rear brake problem

It's supposed to be stiff once you get all the air out. That's the point.
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Old 12-08-2012, 01:57 AM   #5
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Mine is stiff too. It's normal. Just be careful and ride slow till you can understand how your rear works for lack of a better term.

sent from toaster. yeah, toaster.
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Old 12-08-2012, 08:29 AM   #6
rv6john
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Re: k6 600 rear brake problem

Do you mean the movement is stiff or that there is only 1/2" of travel before brake application?

I just checked my two bikes and both are just at 1/2" travel before braking with a firm pedal. I suspect you had air in the system previously and just did a good job bleeding it out.

If you meant that the movement is stiff, try squirting some oil on the footrest pivot. Also, if the bike has been dropped or crashed, the rear peg could be slightly bent and binding the pivot.

Some guys that track their bikes, and want a little less rear brake sensitivity and power, will actually introduce a little air into the system to "dumb it down".

I lowered my brake pedal a little and that also seemed to make it more user friendly. (Doesn't change the brakes but helps with the bio-mechanics?)
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Old 12-08-2012, 09:23 AM   #7
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Re: k6 600 rear brake problem

thanks for alll the replys. gonna go ride the bike right now
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Old 12-08-2012, 12:13 PM   #8
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Re: k6 600 rear brake problem

alright rode my bike to school today and the rear brakes are perfect! Thanks for the info everyone. The reason why I thought this was a problem, was because the first time i got my brake fluid flushed and changed I decided to go to a local "mechanic" and pay him to do it. Guess he didnt bleed my brakes enough before, so the rear brake lever was never this stifff
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Old 12-08-2012, 03:37 PM   #9
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Re: k6 600 rear brake problem

LOL>... nice. Bike is done right and owner thinks it is a problem

good job on the brakes. What were you installing? A junction valve? wtf
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Old 12-16-2012, 09:10 PM   #10
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Re: k6 600 rear brake problem

I was planning to install the gp tech junction valve, but lagged it and got lazy lol. So know just gonna wait for a good deal on a dual caliper bracket
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Old 12-16-2012, 09:18 PM   #11
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Re: k6 600 rear brake problem

what are you trying to do?
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