Rhino-Rack quotes over 800 pounds static (parked) and almost 300 pounds dynamic (on the trail)...that's HUGE load ratings!! Also the system is all aluminum and Rhino-Rack offers over 60 accessories for their Pioneer Platforms...5 different awnings, MaxTrax brackets off the side or flat on top, rollers off the back, LED light bar brackets, tie-downs, load stops and they are working on axel-thru bike carriers and solar options. They offer the most accessories for any roof top platform or you can run their Aero crossbars if you prefer. Rhino-Rack has been making ski, bike & kayak accessories for 25 years out of Australia...top of the line stuff!