I just put my double tube bumper on today. Mine is for the back and it is a polaris product, the bumper doesnt have a winch mount on it. My winch mounts to the frame upfront, and my brushguard up front just fits around it.

 

Doesn't Rocky Mountain atv sell the mount by itself?

I have the tube bumper on my 06 SP500 and mounting a good wench to the correct location shouldn't be a problem...

 

I used 1" square tubing in the middle of the front and rear bumpers to make my own winch mounts, then wired it to both ends, works like a reciever hitch on a pickup, just pin it and pull. Carry the winch up front in a bag when not in use.