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Old 10-10-10, 04:20 PM   #1
sauluk
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Default 'juddering' front brake.

Not on an SV, but a cbr600rr. Under heavy braking, typically at lower speeds in the 40-0mph range the front will judder a bit, feels like a rattle through the forks. If I release and reapply it goes away usually but is pretty odd.

I've not had the brakes off yet but pads are fine (tyres changed recently and they had a look) and discs don't appear to be warped.
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Old 10-10-10, 04:55 PM   #2
G
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Default Re: 'juddering' front brake

I had exactly the same, my forks were bottoming out.

What weight are you? I weight 12.5st and my preload had to be wound 15 clockwise of it's 16 adjustments before it was right.
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Old 10-10-10, 05:20 PM   #3
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Default Re: 'juddering' front brake

Forgot to say that's on a 600rr too.

Other things I did at the same time were clean all the brakes up including caliper pistons and making sure the floating discs are actually floating by cleaning the washers.

99% put my money on the forks bottoming like mine were though.
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Old 10-10-10, 09:45 PM   #4
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Default Re: 'juddering' front brake.

Thanks buddy. I'll check they're not bottoming out but I don't think they are. I'm about the same weight as you but my suspension settings are all stock, unless someone wound them all the way around? Don't know if that's even possible.

It's about time I had the brakes off anyway so I'll check preload first and then give the brakes a clean up.
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Old 11-10-10, 06:39 AM   #5
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Default Re: 'juddering' front brake.

If it's still on stock settings then it probably is lacking preload for your weight by a fair bit.

Stick a cable tie on the stanchion and after hard riding with heavy braking it need to finish at 33mm, at 27mm from the bottom the forks are bottoming out.
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Old 11-10-10, 08:39 AM   #6
warrenhewitt10
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Default Re: 'juddering' front brake.

can you get the RR with abs?
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Old 11-10-10, 01:02 PM   #7
Stig
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Default Re: 'juddering' front brake.

Quote:
Originally Posted by warrenhewitt10 View Post
can you get the RR with abs?
I guess it would depend on how much time it spent in the gym.
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Old 11-10-10, 01:11 PM   #8
warrenhewitt10
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Default Re: 'juddering' front brake.

Quote:
Originally Posted by Stig View Post
I guess it would depend on how much time it spent in the gym.
very true, just thought it would be worth a say
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Old 11-10-10, 02:49 PM   #9
Stig
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Default Re: 'juddering' front brake.

Apparently after a quick Google search, ABS has been available on the RR since last year.
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Old 11-10-10, 02:56 PM   #10
warrenhewitt10
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Default Re: 'juddering' front brake.

reason i suggest this, have a friend whos dad has one of the new tiger 1050's it has abs, and when it kicks in it sounds awfully like what sauluk has described
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