I met a gal six years ago that was on a long tour, she had had her Tubus Swing repaired several times because it could not be replaced.
She had an air suspension fork. From my motorcycle days, I recall that the best handling was to minimize your un-sprung weight and get as much of your weight as possible on the part of the bike that the suspension supported. The Tubus Swing was the only front bicycle rack I had ever seen that did that. You can see it on the front of her bike. The red Front Roller panniers (one on the ground, one on the bench) went on the Swing. Pair of Front Rollers is 25 liters.