Do you need to add a tray to your bike to put in more work on the farm or take more gear with you on the trail? If you do the RIVAL tray is what you need. Made from a steel base for strength with alloy sides to save on weight the Rival Pioneer 500 Cargo Tray is up for the task. Complete with 3 sides that fold down loading or unloading or hauling something oversize has never been easier.s something exciting your business offers? Say it here.