What Cross Bar Spread is required for the SlimShady? Dave Updated September 05, 2018 22:25 Follow The SlimShady will work with a crossbar spread of between 24 and 70". If you have additional questions, contact us here, or by phone at 888-925-4621 M-F from 7 to 4 PT. Related articles What are the specs on the Yakima SlimShady Can the SlimShady be mounted on a Warrior Basket? Cargo Box Load Capacity Can I mount a tent on a Load Basket? Cracked Cargo Box Comments 0 comments Please sign in to leave a comment.