I've been riding with a Tubus Airy since 2008. I have ridden over 80,000 miles with the rack attached to my bike and have hung at least one pannier on the rack for the majority of those miles (full-time bike commuter, part-time bike tourer). I've used the rack so often that my pannier has worn a groove in the titanium. The rack is unbelievably light and strong. It's also eye-watering expensive (you can find them for about $270). I would buy another one in a heatbeat.