I want to make my own cargo boxes (plywood) and attach them to the OEM racks, front and back. My question is,

is the Lock n Ride system patented by Polaris?

Are the LnR attachment points available alone, so i can use them in my own cargo application?

Does anyone have any good ways to attach boxes to the rack if I cant use LnR attachment points? I hate to use bunge cords.

Thanks