I have a Yackup from rvkayack racks. It's heavy but with one Kayak and including the rack it's well under 300lbs. It will also carry 2 bicycles but have not tried that yet. My receiver is welded to the frame, I don't have a bumper.
No man has a good enough memory to be a successful liar. Abraham Lincoln
2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch