Try these guys maybe??-----www.precisionracingproducts.com-----
www.gprstabilizer.com and also try Denton let me know what you find , I found these links on a Suzuki forum. And this one might help too, it's on a Suzuki but I think you'll have to modify whatever you buy--http://www.mudanddirt.com/forum/showthread.php?t=5318
I phoned Denton Racing about the one for the King Quad and they wre on back order. I was just going to modify the mount. They did a test with it on the KQ in a mag and it got good reviews. Its a piston style dampner and it is rebuildable.
A guy I know has one on his Grizzly and it makes a huge difference on rough terrain. The ones I see online are all for sport quads. He got his locally. I never tried, but I'm sure they can be modified for the Grizzly.
The Gibson Steering Stabilizer I bought Fits Yamaha YFZ450, Honda TRX450, 400EX, 250R, Banshee, Raptor, even Grizzly with no mods, bolt on.
I have it installed and will give a ride report after this weekends ride.
I can type and move my mouse across the screen after a hard days riding!
Steering Stabilizer made a huge difference on rough terrain. My arms were like puddy after twenty min of hard riding without it. Now, its a little harder to turn quick but the bars do not get ripped out of my hands when hitting rocks, stumps, etc I can now ride over rough terrain with a light grip on the bars and save my arm strength for when I really need it.
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