We have not been able to test fit our gear on the Rhino Platform. The Cargo Chocks were designed specifically for our Slimline II roof rack tray. The Chocks do use M8 Hex Head bolts to mount within our channels, so if that matches Rhino, you may be able to get it to work. We do have a 30 Day return policy, so if you want to give them a try and they don't work, you can send them back to us!
Front Runner team.