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Offline ISU Cyclone

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Warped front brake rotor
« on: August 06, 2015, 03:02:28 am »
I have a 2013 TTSE which I purchased new in September 2013. I think I've had all the updates done including 2 ECU's. Sometime around 20K miles I had the front brake rotor replaced because it was warped. My dealer mechanic caught it after he'd done some routine maintenance & took it for a test ride. Then sometime between the 30K & 40K service it was warped again. I don't ride it hard or anything, I'm an old guy!! This time the mechanic says there is something causing this & after tearing the front brakes all apart he said that one of the calipers was hanging up. So now at 42K miles I have a whole new front brake system. All of this was covered under warranty. Hopefully this cures the problem.
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Offline big bird

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Re: Warped front brake rotor
« Reply #1 on: August 06, 2015, 04:22:26 am »
My many years working on race car most rotor that warp were because of high heat .Did you notice the front rotors getting hot and were both front rotors warp .
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Offline ISU Cyclone

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Re: Warped front brake rotor
« Reply #2 on: August 06, 2015, 04:31:29 am »
I really didn't notice anything other than the surging when the front brakes were applied. I did touch them a few times after riding & they were hot but I had just applied them to come to a stop. One or both probably were over heated but I never really checked. O should have been more observant.
19?? Cushman scooter, 1971 Suzuki TC100, 1973 Kawasaki Mache II 350 Triple, 1974 Honda CL450, 1976 Suzuki GT750 Water Buffalo, 1980 Suzuki GS1000, 1983, 86, 87, 87, 91 Yamaha Venture, 2013 & 2014 Triumph Trophy SE (both blue)

Offline Volfy

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Re: Warped front brake rotor
« Reply #3 on: August 06, 2015, 02:32:30 pm »
It seems that the heavy STs tend to see reports of warped brake rotors more often than lighter bikes.  That was the case when I owned a C14 and read about it in C14 forums quite often.  Sticky caliper piston(s) is a possibility, but I would imagine it i difficult to go unnoticed every time you let off the throttle.  If you ever ride in hilly terrain, use a lower gear to slow the rate of descent, instead of riding on the brakes... particularly when 2up and loaded with gear.  Not to say it couldn't be a mfr defect. but you can minimize the chances of it happening to you.
Converto, ergo sum.       '15 300RR, '15 250XCF-W, '14 K1600GT, '12 VFR1200, '05 GSXR600 (track).

Offline w8d4it

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Re: Warped front brake rotor
« Reply #4 on: August 06, 2015, 03:11:24 pm »
I haven't had any problem with my brakes, other than the pads don't last very long.  But when I read several reports of warped rotors I get concerned because I am well out of warranty.  I've often wondered whether operator riding habits might contribute to the warpage.  Volfy if I read your comment correctly you have considered the same?
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Offline Saaz

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Re: Warped front brake rotor
« Reply #5 on: August 06, 2015, 03:43:47 pm »
I noticed some pulsing at times with the OEM pads, went away a bit with really hard use. No such pulsing with feredo pads at all but they lasted a bit less.

Offline Volfy

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Re: Warped front brake rotor
« Reply #6 on: August 06, 2015, 04:14:30 pm »
w8d4it, yes, I do think quite often the cause is other than mfr defect in the material and/or construction.  It could be as innocent as your hot rotors (after a good bit of riding) getting splashed with water, say, from running over a puddle.  I don't ever wash my bike right after riding for this reason.

Or it could be from a careless tech inadvertently bending the rotor while changing out your tire.  I myself was guilty of that once, right after I bought my Nomar tire changer and hadn't quite figured out what I was doing.  :087:  That one: $200 lesson learned.

IMO, for this to be a genuine mfr error, the failures would have been much more consistent and widespread.
Converto, ergo sum.       '15 300RR, '15 250XCF-W, '14 K1600GT, '12 VFR1200, '05 GSXR600 (track).

Offline ISU Cyclone

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Re: Warped front brake rotor
« Reply #7 on: August 09, 2015, 02:28:34 am »
 I appreciate everyone's input. But I have been riding bikes for many years with most of my bikes going over 70,000 miles and I have never had a warped rotor before. I have not changed my style of riding, most of my rides are a minimum of 20 miles up to several hundred per day. Now to have warped rotors warp 2 times in 42,000 miles leads me to believe there is a problem with the bike, not the way I ride.
19?? Cushman scooter, 1971 Suzuki TC100, 1973 Kawasaki Mache II 350 Triple, 1974 Honda CL450, 1976 Suzuki GT750 Water Buffalo, 1980 Suzuki GS1000, 1983, 86, 87, 87, 91 Yamaha Venture, 2013 & 2014 Triumph Trophy SE (both blue)

 



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