Snowboard Mounts
If you have the room, I would suggest you place them inside the Disco in snowboard bags. I work for REI and I have a DI with the rack on and the OD of the adventure rack is bigger than the Yakima mounts. The mighty mounts are for round or sq. Thule crossbars which are still smaller larger smaller than the Yakima. If you insist on putting them on top in the rack, as the previous person mentioned, put them in their bags and strap them with webbing type straps like the Yakima H.D. straps. They are the best and easiet to use. Plus they have a rubberized "ancra" buckle which protects your car from getting scratched.
hope that helps.
Ed