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Old 05-22-2013, 08:35 PM   #31
rboett
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try cranking down the pre-load a bit on the REAR shock, that will cause increased downward pressure on the front,,,, give it a try
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Old 05-22-2013, 08:59 PM   #32
Voz OP
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Quote:
Originally Posted by rboett View Post
try cranking down the pre-load a bit on the REAR shock, that will cause increased downward pressure on the front,,,, give it a try
I am running lowest setting preload, 1 rider no luggage. Soft setting for suspension.

I have not been on a freeway since my last post but will report any updates here. For the moment I have no concerns, not quite sure how to again simulate e very slight wobbles I originally posted about now.
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Old 05-23-2013, 03:50 AM   #33
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I Just rode another 450km on the weekend mostley tar avarage speeds 100 to 120 kph for long stretches total so for 1000km in 2 weeks since new no problems no front wobbles , what a great machine
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Old 05-23-2013, 05:13 AM   #34
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Quote:
Originally Posted by Voz View Post
I just came back from a 100 Klm run with the local sports bike club, lots of twisties and suburban main roads and about 5 Kim of freeway.

I could not get the bike to exhibit any wobble in the bars tonite.

I note that my front tyre was showing 2.1 bar and rear at 2.5 bar. Last nite the front was at 2.2 bar, can't imagine that is significant just thought I'd mention it.
Recommended pressure is 2.5 up front and 2.9 for the rear wheel. Mine is at 2.3 front and 2.6 rear at the moment. It was at 2.5 and 2.9 when new. I'll get some extra air in them before my next trip.
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Old 05-23-2013, 05:15 AM   #35
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Lately the wobble has been gone. At 110 and 120 kph it's not there (neither at 120 mph )
4200 km so far.
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Old 05-23-2013, 05:15 AM   #36
bemiiten
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Quote:
Originally Posted by rboett View Post
try cranking down the pre-load a bit on the rear shock, that will cause increased downward pressure on the front,,,, give it a try
+1
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Old 05-23-2013, 07:26 PM   #37
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the manual also states that damping must be increased along with preload. Has anyone tried this?
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Old 06-03-2013, 06:06 AM   #38
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I am also getting a front wheel vibration through the bike (handlebars etc) above 80km. I have spoked rims with Metzler Tourance tyres. The vibration only started at 1500km and the bike has now done 3200km. Only really noticeable on smooth roads in a straight line. I have played around with the tyre pressure and it is worse at lower PSI. I also noticed I have two balancing weights inside the wheel. Not sure is this is normal? I have also closely inspected the tyre rotating it whilst on the middle stand and it looks perfect!? Dealer tells me it is within normal tolerance but I think not! Trying not to be anal but it definitely worse than the videos of other GWCs I have seen. All advice, suggestions or comments welcome.
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Old 06-03-2013, 09:46 PM   #39
MarcGSA
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Handle bar shake!?!

It is a common event with a block and staggered block design. Situation that I had with my GSA 09. The Tourance, Anakee and other have a tendency to wear on a slight wedge so that at a certain RPM (speed) it will create a handle bar shimmy and if not taken care of can induce other odd situations. For my sake I remounted the tire backwards to wear it the other way but one must have more caution in the wet stuff and do not recommend it, but I did it anyway for the extra tire life. Running the tire with pressure on the high side will posepond the wedge wear effect.
Also if the rear wheel has some free play from whatever (final drive bearing loose, pivot bushings,..) it will give similar symptoms.
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Old 06-08-2013, 06:00 AM   #40
IB1
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If all is right: my video of the front end wobble. Appears between 85 and 75 kph. The front wheel has been rebalanced since then.
The wobble only appears in certain conditions.


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Old 06-08-2013, 06:09 AM   #41
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Definitely not on mine. I Have metzelers and spokes.
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Old 06-08-2013, 07:05 AM   #42
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Definitely not on mine. I Have metzelers and spokes.
Same wheels and tires, but this can't be noted with hands on the handlebar. And since it was rebalanced it got better.
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Old 06-08-2013, 07:29 AM   #43
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Wobble, what wobble???

I rode away from the dealer and rode home 130 miles at 65 to 105 mph and experienced no wobble. Could it be a specific road surface condition, does it happen in the same location?
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Old 06-08-2013, 11:22 AM   #44
Hambonee
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just over 500 miles on mine. No wobble what so ever

Actually..most stable bike at speed have ever ridden...does wonders for high speed travel on busy road..bike is just solid..
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Old 06-08-2013, 02:48 PM   #45
RichBMW
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On our way back from Italy a couple of weeks ago, we went on the autobahn in Germany. With panniers and soft luggage, I took mine off the clock, over 150mph, GPS verified at 144mph. No wobble. No shake. Nothing. Anyone with headshakes need to get your bikes checked out.
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