are my front discs warped? - SV650.org

07-07-12, 10:28 AM

Last mot i got an advisory for my front discs being slightly warped. Although there is something slightly odd, there isnt any pulsing in my brake lever, it only happens at slow speed or light braking. Is this a warped disc or something else. Ive given the discs and calipers a good clean and theres still plenty meat in my pads. And its a k6 pointy

NTECUK · 07-07-12, 11:04 AM

Whats the run out figures.

07-07-12, 11:18 AM

I haven't got any run out figs, and i spose this would tell me for sure. Oh well i'd better take a trip to my friendly mechanic. Thanks fellas

07-07-12, 11:47 AM

I've got a warped disc that I keep meaning to fix, I don't get a pulsating really, I just feel the bike stopping in a stepped fashion when it slows down, high speed you can't tell. Just the last 20-30ft coming to a stop you can feel it.
Sounds similar to what you are experiencing so I'd say its warped.

NTECUK · 07-07-12, 12:00 PM

If you can free the front wheel of the ground you might feel it or hear it catch the pads .

07-07-12, 06:59 PM

Brettus - thats exactly how mine is - I think its warped too, just wanted to be sure before I fork out for new discs. Ntec - got an abba stand but no front lifter, gonna have to find a front paddock stand or a bottle jack and bit of wood. Just thought a warped disc would make my brake lever pulse. Anyway new discs it is.

Thanks again guys

rictus01 · 09-07-12, 05:18 AM

FYI, the last two people to come to me claiming a warped disc were wrong, what they took to be well serviced calipers were indeed clean, just not as free moving as they should be, correcting this solved the problem, if you can't push the pistons back with one finger they are binding to a degree.

Cheers Mark.

NTECUK · 09-07-12, 08:41 AM

If you get it up apply your brake hard. it should release quickly and turn smooth will just a very slight rubbing sound..
If it catches you have a high spot.
If its dragging your end up with a warped disc because of heat .
That is what Ricktus Is saying .
It will also become permanent if you don't free the brakes

Sir Trev · 09-07-12, 11:12 AM

Quote:

Originally Posted by NTECUK

If you get it up

I'm sorry, but that cannot be let go with out a suitable comment.

Snigger.

Carrry on...

NTECUK · 09-07-12, 12:16 PM

"It's a trap " ......
Sprung

07-07-12, 10:28 AM	#1
scotty217 Guest Posts: n/a	are my front discs warped? Last mot i got an advisory for my front discs being slightly warped. Although there is something slightly odd, there isnt any pulsing in my brake lever, it only happens at slow speed or light braking. Is this a warped disc or something else. Ive given the discs and calipers a good clean and theres still plenty meat in my pads. And its a k6 pointy

07-07-12, 11:04 AM	#2
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: are my front discs warped? Whats the run out figures. __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

07-07-12, 11:18 AM	#3
scotty217 Guest Posts: n/a	Re: are my front discs warped? I haven't got any run out figs, and i spose this would tell me for sure. Oh well i'd better take a trip to my friendly mechanic. Thanks fellas

07-07-12, 11:47 AM	#4
Brettus Guest Posts: n/a	Re: are my front discs warped? I've got a warped disc that I keep meaning to fix, I don't get a pulsating really, I just feel the bike stopping in a stepped fashion when it slows down, high speed you can't tell. Just the last 20-30ft coming to a stop you can feel it. Sounds similar to what you are experiencing so I'd say its warped.

07-07-12, 12:00 PM	#5
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: are my front discs warped? If you can free the front wheel of the ground you might feel it or hear it catch the pads . __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

07-07-12, 06:59 PM	#6
scotty217 Guest Posts: n/a	Re: are my front discs warped? Brettus - thats exactly how mine is - I think its warped too, just wanted to be sure before I fork out for new discs. Ntec - got an abba stand but no front lifter, gonna have to find a front paddock stand or a bottle jack and bit of wood. Just thought a warped disc would make my brake lever pulse. Anyway new discs it is. Thanks again guys Last edited by scotty217; 07-07-12 at 07:03 PM.

09-07-12, 05:18 AM	#7
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: are my front discs warped? FYI, the last two people to come to me claiming a warped disc were wrong, what they took to be well serviced calipers were indeed clean, just not as free moving as they should be, correcting this solved the problem, if you can't push the pistons back with one finger they are binding to a degree. Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

09-07-12, 08:41 AM	#8
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: are my front discs warped? If you get it up apply your brake hard. it should release quickly and turn smooth will just a very slight rubbing sound.. If it catches you have a high spot. If its dragging your end up with a warped disc because of heat . That is what Ricktus Is saying . It will also become permanent if you don't free the brakes __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

09-07-12, 12:16 PM	#10
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: are my front discs warped? "It's a trap " ...... Sprung __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Warped Discs? (curvey)	Chalky	SV Talk, Tuning & Tweaking	4	09-04-11 10:09 AM
MOT - warped brake discs	Wideboy	Bikes - Talk & Issues	27	23-08-09 08:41 PM
Warped discs?	yorkie_chris	SV Talk, Tuning & Tweaking	30	02-04-08 07:42 PM
Argh one of my discs is warped.	DanAbnormal	Bikes - Talk & Issues	7	25-01-08 10:48 AM
Warped front discs - warranty claim?	RingDing	SV Talk, Tuning & Tweaking	3	05-02-07 08:41 PM