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Old 08-07-10, 05:04 PM   #1
barwel1992
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Default brake judder ?

ok just been out on the bike with the new front end (just around the block) it has new disks and pads, the system has new fluid although i still think there's some air in the system as its a bit spongy.

if i brake hard from 50mph there is some front wheel judder is this just the combination of new pads and disk's ?

ps the front tire is also on the wrong way round and the wheels are unbalanced, this was only a 5min test ride around the estate and i know they need doing (so does other stuf)

or should i just wait till i get the wheels and tire done and try again ?
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Old 08-07-10, 05:12 PM   #2
Dave20046
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Default Re: brake judder ?

Are the disks brand new?

Do the brakes pulse at slow speed?

Who the **** fitted your tyre?!
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Old 08-07-10, 05:15 PM   #3
AmigaNut
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Default Re: brake judder ?

Quote:
Originally Posted by barwel1992 View Post
ok just been out on the bike with the new front end (just around the block) it has new disks and pads, the system has new fluid although i still think there's some air in the system as its a bit spongy.

if i brake hard from 50mph there is some front wheel judder is this just the combination of new pads and disk's ?

ps the front tire is also on the wrong way round and the wheels are unbalanced, this was only a 5min test ride around the estate and i know they need doing (so does other stuf)

or should i just wait till i get the wheels and tire done and try again ?

New disks and pads need to be bedded in , hard braking is NOT recommended. I don't think the tyre helps.
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Old 08-07-10, 05:16 PM   #4
yorkie_chris
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Default Re: brake judder ?

Check the discs for runout and that you haven't got the anti rattle shims in wrong.
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Old 08-07-10, 05:46 PM   #5
barwel1992
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Default Re: brake judder ?

brakes don't pulsate at low speed

disks have had light use (very light use)

the disk seem to have a very very minor warp about a mm out from the rest ?

and the bloke who sprayed my wheels fitted the tire but the front wheel has no arrow (stupid i know)

hard braking from slower speed has no judder
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Old 08-07-10, 05:48 PM   #6
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Default Re: brake judder ?

I'd guess it'll be that warp.
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Old 08-07-10, 05:53 PM   #7
barwel1992
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Default Re: brake judder ?

might just ride it for now and see what happens
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Old 09-07-10, 08:36 AM   #8
barwel1992
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Default Re: brake judder ?

well decided to do the pen zip tied to the fork leg test and the disk is way way out on the left hand side its almost half warped

no DSLR for me then and as i was just about to take my old camera off ebay it sold for £100 lol so now i have no camera need disk's looks like i will be calling on bank mum n dad again which i have been trying not to do (selling stuf to fund other stuf rather than just asking mum n dad for it)
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Old 09-07-10, 09:37 AM   #9
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Default Re: brake judder ?

If you've just had the wheels painted/sprayed, were the disc mounting faces masked off or have they been painted too? It might be uneven paint under the disc face causing the run-out.
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Old 09-07-10, 09:44 AM   #10
barwel1992
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Default Re: brake judder ?

they have been painted, i might go and strp the paint where the disks mount, will go and check them with a straight edge first
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