i have these on front and rear of my stroked banshee for 2 years. i ride in the sand and desert and never had a problem.they improve the stability and shock dampening alot. THEY ARE FOR TRACK USE OR BIG AIR JUMPS. great upgrade for the money. just remember not to over tighten the lugs because you can strip the adapter bolts
these wheel spacers were a little wide for my application. also you have to keep a close watch on your lug bolts once they are installed. i would say they need to be thoroughly inspected before and after each and every ride. i learned this the hard way, and lost a spacer in mid air over an 80 foot tabletop. the bolts loosen slightly which allows a small amount of play between the wheel, spacer, and hub. this in turn will crack the spacer. i put threadlock on my bolts and they still eventually developed slight wobble. i replaced them with the tusk aluminum extended hubs, and i am much more satisfied with them.
I have used these wheel spacers on 2 different quads and never had a problem. People that complain about them usually are the one's who jump their quads. It says on the box not for mx applications. They are a great way to increase stability for trail use. I think a quad thats 51 inches wide v.s. a quad thats 47 inches wide is far more safe and stable.
These spacers are horrible they need to do some more research before releasing anymore of these. First off the replacement studs are not threaded far enough down and when you torque them on your bike it strips the end of the stud and the lugnut so if you take them off don't plan on putting them back on because it won't happen. Now I'm forced to buy new lugnuts and replace the studs.Warning do not buy these
They gave my YFZ good stability. They worked great with my stock rims, but I had some problems when I bought new rims. The spacers were to big and wouldn't fit inside the rim (ITP Baja). So be advised some sanding might be required.