The DUO is particularly suitable for tandems or touring bikes for medium loads, due to the construction with no u-bow above the front-wheel.

The Duo requires forks with lowrider bosses

All Tubus carriers are hand-made in Germany from 10mm - 0.5mm wall thickness cold-drawn steel. This makes them lighter and yet stiffer than the equivalent aluminium rack. Steel is also far more fatigue-resistant than aluminium - the major cause of failure. And steel can be repaired if the need ever arises. The carriers are finished in tough epoxy powder coating, except for the stainless carriers, which are hand-polished