Is there a seatpost rack that works with ortlieb panniers?

[Yamahonian]

Is there a seatpost rack on the US market that is compatible with ortlieb QL 2.1 panniers?

I have a bunch of ortlieb panniers that I would like to use on my secondary bike, but it does not have any braze-ons for bolting a rack.

Looking for something universal and relatively inexpensive like a seatpost rack.

 

[RunForTheHills]

That would put a lot of stress on the seat post. You can use P clamps to secure the rack if there are no braze ons and there is not a rear suspension.