Darkside Wobble! Worried!

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Darkside Wobble! Worried!

Post  BigdriverK on Mon Apr 21, 2014 11:26 pm

Recently went darkside on a 98 Valkyrie 1500Ct . Went with a Gen Altimax HP 205/60/16 running about 40lbs. I'm 6'2" 380, And at about 80mph bike goes crazy with wobble ! Was told tire had been properly balanced , so what gives? I also often ride 2 up with the wife so need to get this straight ASAP! Please help !! Have no idea what the problem could be.Also nut cage has been removed!
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Re: Darkside Wobble! Worried!

Post  skullsession on Tue Apr 22, 2014 6:28 am

I'd be throwing at least 4 oz of dynabeads in that tire....like RIGHT NOW. You'll know pretty quick if the tire was balanced properly or not.
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maybe a bad tire

Post  genedjr on Wed Apr 23, 2014 3:14 pm

When you say wobble, are you talking forceful vibration at the handlebars? or?
Does it only wobble at speed? If so, I agree with the dyna beads answer.
If you get a wobble all the time its just worse at speed, check the tire. It may just be a bad tire.
...gene
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Darkside Wobble! Worried!

Post  BigdriverK on Fri Apr 25, 2014 10:25 am

I'm only getting the wobble at speed!! Around 80 up!
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balance stand

Post  genedjr on Fri Apr 25, 2014 4:30 pm

There are a couple of things -

  • Re-check the tire pressure. While I have not heard 40lbs being an issue - maybe it is.
  • How many miles are on the bike?
  • Have you ever had the swingarm bearings checked? Retorqued?
  • Did your last rear tire wear evenly? Front?
  • Was the front tire changed when you changed the back? Sometimes the front pressure needs to change as I did on mine. 1 lb made a big difference for me.
  • If you have a buddy with a 1500 and a bike tire on back - swap tires and see of the wobble stays or goes.


Also please define the wobble.
...gene
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Darkside Wobble! Worried!

Post  BigdriverK on Fri Apr 25, 2014 11:12 pm

Thanks for the response. Pressure checked, swingarm bearings checked,gonna try dyna beads next! front tire was changed with the rear!
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Re: Darkside Wobble! Worried!

Post  LadyDraco on Sat Apr 26, 2014 7:51 am

BigdriverK wrote:Thanks for the response. Pressure checked, swingarm bearings checked,gonna try dyna beads next! front tire was changed with the rear!

I had posted up in the Valk thread where you had also posted....
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wobble

Post  genedjr on Sun Apr 27, 2014 12:13 am

Please provide more details about the wobble. There are so many way to get a wobble, that the specifics need to be understood.

For me, the wobble started at 90+ and was more tail wagging then tank slapping. Unless I was braking, than the tank slapping was crazy. I fixed it with varying tire pressures and now I am fine.

...gene
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Re: Darkside Wobble! Worried!

Post  Fly on Mon Apr 28, 2014 10:16 am

This is more of a problem than many would admit, and tire pressure is most definately a big factor. At these speeds, balance would not be a major factor. I've yet to get rid of this on my Concours, but by using different air pressure have raised the speed to over 90 MPH. Good luck.
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Darkside Wobble! Worried!

Post  BigdriverK on Tue May 06, 2014 4:13 am

Thanks for everyone's help! Put in 16oz of ride on and wobble went away! Went to Thunder Beach this Past Weekend and all was well! Had a great time as always!
Again THANKS!!
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wobble

Post  rossmond on Fri Sep 05, 2014 3:18 pm

the altimax has an inadequit sidewall dif tire recomended and v rated sorry man check link for details http://vstar1300.pbworks.com/w/page/5760723/Tires
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Darkside Wobble! Worried!

Post  BigdriverK on Mon Sep 15, 2014 5:55 pm

Thanks !! Read the post and had all the results the tread mentioned!! Have been trying to find a 205/60/16 run flat to go to, but no luck so far.
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