Author Wobble at slow speed  (Read 15339 times)

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  • Offline RiderMike   ca

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    Offline RiderMike

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    Wobble at slow speed
    on: November 13, 2023, 08:35:00 pm
    November 13, 2023, 08:35:00 pm
    I’m new to Triumph bikes in general, but have been fixing and riding bikes for years. I bought a 2018 tiger XCA that was damaged (not too badly) and have been fixing it up. The bike is completely finished and I’ve been driving it, but at 55 km/hr, I have a weird wobble that almost rocks the bike front to back. No shaking in the handlebars and it steadies out as I speed up. It has brand new dunlop trailmax missions, the wheels were balanced, and trued at a bike shop. The steering head bearings are tight, it has brand new fork seals and bushings with everything else tight. It’s sort of annoying when driving through a town, is this common with these bikes or does anyone have any pointers as to what to look at. Thanks.

  • Offline NiK   fr

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    Offline NiK

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    Re: Wobble at slow speed
    Reply #1 on: November 14, 2023, 01:57:14 pm
    November 14, 2023, 01:57:14 pm
    AFAIR, it's completely unheard of!
    Does the wobble persist when you pull the clutch? If so, there must be something wrong in the bike frame. If not, there might be something amiss around the engine (mountings? transmission?).

  • Offline RiderMike   ca

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    Offline RiderMike

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    Re: Wobble at slow speed
    Reply #2 on: November 14, 2023, 02:20:53 pm
    November 14, 2023, 02:20:53 pm
    Thanks for clarifying, didn’t imagine it was normal. The damage was mostly cosmetic but I have checked to made sure no welds had cracks or paint chips. The wobble still persists even when the clutch is in.

  • Offline NiK   fr

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    Offline NiK

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    Re: Wobble at slow speed
    Reply #3 on: November 15, 2023, 09:41:38 am
    November 15, 2023, 09:41:38 am
    *Originally Posted by RiderMike [+]
    The wobble still persists even when the clutch is in.
    You mean 'off' (c; ?
    Anyway, same behavior with and without clutch, means this is not an engine/tansmission problem.

  • Online Guitarman   gb

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    Online Guitarman

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    Re: Wobble at slow speed
    Reply #4 on: November 16, 2023, 06:26:23 pm
    November 16, 2023, 06:26:23 pm
    Don't do off road so can't comment on the tyres but they look a bit chunky to me.

    You say everything is tight. Have you checked the rear end and the bearings in the drop links in the region of the lower shock mounting.

  • Offline Will Morgan   gb

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    Offline Will Morgan

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    Re: Wobble at slow speed
    Reply #5 on: November 16, 2023, 06:51:25 pm
    November 16, 2023, 06:51:25 pm
    Have you checked the front wheel bearings?
    Have you checked the alignment of the fork legs thru' the yokes/triple trees? Are they slightly twisted and/or not parallel?

  • Offline ijinak   us

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    Offline ijinak

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    Re: Wobble at slow speed
    Reply #6 on: December 07, 2023, 04:34:15 pm
    December 07, 2023, 04:34:15 pm
    Maybe check you don't have loose spokes

  • Offline ZShyster   us

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    Offline ZShyster

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    Re: Wobble at slow speed
    Reply #7 on: December 09, 2023, 04:53:51 pm
    December 09, 2023, 04:53:51 pm
    Sometimes it is as simple as a bad tire.  I had this problem on a new Bonneville and after checking everything possible I replaced the front tire and magically it was gone.

    Ride Safe
    ZShyster