Being on either side of a 20" wheel, the front Pannier racks on my Bike friday are both
low riding , and I can tie a load across the top of both panniers and the rack .
[ Pizza picked up with stretch net to the pannier D rings]
Putting a big wheel lowrider rack does bring it down rather low on small wheel forks.
as most fits on fork tip eyelets , that are 3~4" closer to the ground..