Author Topic: Shaking/vibrating when braking  (Read 3636 times)

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  • Offline Benny1234

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    Offline Benny1234

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    Shaking/vibrating when braking
    on: Jul 05, 2018, 07.57 pm
    Jul 05, 2018, 07.57 pm

    Bought a used CT 2015. Instantly had problems with steering bar shakes WHEN braking. Dealer changed discs and pads but now instead of shaking in 30-80 km/h it's vibrating 100-140 km/h when brakes applied. Dealer claims this is common error with CT and that some CTs just never get good no matter what parts are changed.

    For me this is kind of a lame answer. Should you have two identical bikes and one has a problem that the other hasn't you should be able to find the fault. It's easy to conclude that there is another underlying reason that isn't bad brake pads or discs.

    Anyone had this?

  • Offline hoppicker   gb

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    Offline hoppicker

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    Re: Shaking/vibrating when braking
    Reply #1 on: Jul 05, 2018, 09.50 pm
    Jul 05, 2018, 09.50 pm
    Never had any problem with the brakes after 16000 miles of all sorts of use and abuse. Including blasting down Alpine passes. If new discs and pads have been fitted it could be runout. On another bike (not a Honda) I had a problem which I traced to a bent front wheel causing the disc to wobble. How good is your dealer?  Hope you get it sorted. Best of luck on Saturday.
    BMW K1 HONDA SH125i
    BMW R80GS BMW R75/6

  • Offline Fredz   au

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    Offline Fredz

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    Re: Shaking/vibrating when braking
    Reply #2 on: Jul 06, 2018, 12.45 am
    Jul 06, 2018, 12.45 am
    It sounds like a warped disc or 2.  Have they been checked with a dial gauge?  Wouldn't be the first discs bent if/when the wheel falls over or bent slightly when doing a tyre change.

    Discs can also have a soft spot where, say a quarter of the area wears at a greater rate than the rest, causing brake shudder, but if they're new that can't be the cause.  Have they been checked with a micrometer anyway?

    Apparently not, as the dealer sounds like he wouldn't know how to use such tools if he says something like 'they all do it.'
    Last Edit: Jul 06, 2018, 12.47 am by Fredz

  • Offline DEMBONES

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    Offline DEMBONES

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    Re: Shaking/vibrating when braking
    Reply #3 on: Jul 06, 2018, 01.22 pm
    Jul 06, 2018, 01.22 pm
    I would (and have done so) never return to any mechanic that seriously says 'they all do that' when you bring him a problem.   :440:

  • Offline MacMurlin

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    Offline MacMurlin

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    Re: Shaking/vibrating when braking
    Reply #4 on: Jul 20, 2019, 07.35 am
    Jul 20, 2019, 07.35 am
    I had a similar problem, replacing the front tire fixed the problem 🤙

  • Offline nick marshall

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    Offline nick marshall

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    Re: Shaking/vibrating when braking
    Reply #5 on: Jul 20, 2019, 08.37 am
    Jul 20, 2019, 08.37 am
    Tell the dealer that You were not born yesterday.
    They don’t do that. They are rock steady at all speeds, with or without luggage.

    There is a fault with your bike and they can fix it.
    Or give you your money back.

  • Offline Maverick

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    Offline Maverick

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    Re: Shaking/vibrating when braking
    Reply #6 on: Jul 20, 2019, 09.15 am
    Jul 20, 2019, 09.15 am
    I always use an in tyre sealant, and only on one occasion I got front wheel vibration, ok it was not brake related but it was a one off

  • Offline Mspeirs

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    Offline Mspeirs

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    Re: Shaking/vibrating when braking
    Reply #7 on: Jul 20, 2019, 05.06 pm
    Jul 20, 2019, 05.06 pm
    I’ve had this problem. It originated when having tyres replaced at a dealer in Finland. The bike was whisked away into a locked workshop, where I was unable to keep an eye on things, and the tyres were changed by a boy/child mechanic that looked to be about 16 yrs old. :110:
    He reassembled the front end incorrectly, resulting in the front wheel not turning freely. Another mechanic put things right, but I was left with a vibration under brakes, between 70-90kph. :013:
    I assumed wrongly, that they had bent a disk, and upon returning the bike to my dealer in Zurich for a service, asked him to check the disk runout. He found nothing wrong, but pointed out that the front end needs to be assembled in a strict sequence, as per the riders manual, and mine had been assembled incorrectly. He disassembled and reassembled as per the the book, and viola! the shake disappeared. :028:

    When again I replaced tyres in Irkutsk Russia, I was careful to assemble correctly. No issues.
    I strongly suggest you read this section in the owners manual. :305: