Aftermarket antivibration clamp for the OEM honda 400ex steering stem?

[onlyquad]

In this moment i dont need aftermarket steering stem. For this reason Im looking only for the antivibe bar clamps kit.
Anyone know what brand of aftermarket antivibration handlebar clamps kit fit perfectly in the OEM ORIGINAL HONDA 400 EX STEERING STEMS ?
I dont have good look with lonestar and roll design, because your web pages inform: this bar clamp kits "no fit" in the OEM.

[cdalejef]

I've never seen any that fit the stock stem.

[Quadworks]

Buy a clamp from 1 of the companies and take your stock stem off. Then take both to a welding/fabricating shop and have them build a mount for it on the stock stem. It shouldn't cost very much to do.