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Front End Wobble with new tires!!!

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6.2K views 4 replies 4 participants last post by  polarisbill  
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#1 ·
I just put on a set of new STI Black Diamond Radial XTR tires on my 2007 Sportsman 800X2, Fronts 26x9x12 & Rear 26x11x12. At 35+ MPH they wobble uncontrollably on hard pack trails & roads. I have tried from 4PSI up to 10PSI and this has little effect. I know the front end on a Polaris "toes out /---\ a little,so maybe I'm not riding on the center of the tire? Defective tire?
Does anyone have any ideas to help?
Thanks
 
#2 · (Edited)
First thing i would do is check the balance of the tire. My guess is its out of balance that bad. I had a tire one time on my jeep that was out bad and it shook it uncontrolably. Also from your little picture there you talking caster not toe. If your refering to how the tires lean in.
 
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#3 ·
When I was looking at tires, the Black Diamonds had several guys who complained about the ride. They were airing down to 2.5 lbs to get a better ride on hard packed roads.
 
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#4 ·
Sounds out of balalnce. I had a similar problem when I put too much slime in a tire. Caused it to be out of balance when I moved fast. For me it was about 40 MPH. Unnoticable below that.
 
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