Bakflip MX4 or Undercover Ultra Flex - Bed Cleats Usable?

After agonizing over which tonneau cover to get and whether or not to go soft or hard, I think I'm leaning toward one of these two.. Bakflip MX4 or Undercover Ultra Flex.

Does anyone know if the factory bed cleats are usable with these? I've watched several videos, but none of them cover this and it looks like they may use some kind of rail that would block these from being used.



Also, general input on either of these (or a better option) covers would be nice to hear, as well!

 

They are usable. I have the backflip and it does move the rails down 1” but everything works the same. It’s a nice set up.

 

Thanks. Does it come with a new rail or do you relocate the factory rail? Is it much work to install?

 

Easy install about an hour and it relocates factory rails.

 

How sturdy are the repositioned bed rails? Would it be able to handle the weight of a Frontrunner bed rack with RTT?

 

Not sure it uses thick aluminum brackets to relocate, it’s fairly strong.

 

I got the same cover.
Yes they lower the rail. Not sure if the mount is as strong as the OEM location though.

 

Yep just relocates them I'm in the same boat trying to decide which cover and the mx4 is looking good