I have since shortened the two upright lengths by 1/2. They were simply too tall and made it needlessly difficult to lift the kayak up and over. They are there to help keep the kayak in place and from sliding sideways. I secure the kayak with 2 ratchet straps. It does not move an inch.

I have since shortened the two upright lengths by 1/2. They were simply too tall and made it needlessly difficult to lift the kayak up and over. They are there to help keep the kayak in place and from sliding sideways. I secure the kayak with 2 ratchet straps. It does not move an inch.