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 Post subject: high speed wobble
PostPosted: 21 Jun 2011 11:28 
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Joined: 08 May 2009 18:46
Posts: 245
Current ride: BUELL XB 9 chimera
Location: Portugal
Hello
yesterday night, when riding home from work, the bike did something that didn't do sense new, at 160kmh started to wobble, I have the bike for 6 years and around 77000km on it, devoured countless tires and never did it again, I've fitted a new set, again, and she started to wobble
OK, I'm thinking the new tires are the problem, but why now, they are calibrated??? I also hoping that it cures it self
Any recommendations

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 Post subject: Re: high speed wobble
PostPosted: 21 Jun 2011 12:00 
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Joined: 06 May 2009 13:55
Posts: 4508
Current ride: GTR1000 Rocket,550GT
Location: Joondalup
Have you replaced your steering head bearings recently :?:

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 Post subject: Re: high speed wobble
PostPosted: 21 Jun 2011 12:31 
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Joined: 06 May 2009 14:32
Posts: 419
Current ride: Buell X1 2001
Bonzo wrote:
Have you replaced your steering head bearings recently :?:

:yt: wheel bearings and swiniging arm bearings, and check your wheel/fork alignment, make sure tyres are seated on the wheel rim properly, spin the wheels while stationary and check for any buckling of the alloy, make sure your tyre pressures are spot on....which tyres are you running on?

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 Post subject: Re: high speed wobble
PostPosted: 21 Jun 2011 13:03 
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Joined: 08 May 2009 18:46
Posts: 245
Current ride: BUELL XB 9 chimera
Location: Portugal
I'm putting back the new steering bearings as much as I can, damn expensive, no play on the steering and still smooth and light. last time I replace them I think 36000km and the swing arm ones to, It's do time right :|
How to do the wheel/fork alignment???
Wheels roll ok, tyre seated ok, light dirt in the rim, wheel bearing change not to long ago, can do it again I suppose
I have a miss match set, I'm running a front pirelli and a rear bridgestone, I didn't change them at the same time, the front one was a month apart.
One ting I've noticed is that when spinning the front wheel, as fast as I possible can by hand, she does wobble slightly??? removed the 10g weight still wobble. Have no idea if it's the same wobble when doing 160kph, problem can be the tire???

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 Post subject: Re: high speed wobble
PostPosted: 21 Jun 2011 15:44 
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Joined: 13 May 2009 22:42
Posts: 1865
Current ride: rusty 3-speed pedal
Location: Montauk
It would be useful to go to a place where they can dynamically balance your wheel, to see if it is indeed a wheel balance issue.

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 Post subject: Re: high speed wobble
PostPosted: 22 Jun 2011 11:46 
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Joined: 08 May 2009 18:46
Posts: 245
Current ride: BUELL XB 9 chimera
Location: Portugal
damn...

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