Get the one component most break-down travel bikes lack a quick way to remove the handlebar. Packing a bike requires separating the handlebar from the bike, and the Zinn Coupled Travel Stem (patent pending) unscrews and comes apart in 10 seconds. It also goes back together just as fast, and in the exact same riding position from before it was removed. This is a vast convenience improvement over conventional stems. The coupler is super secure and strong, and it is easy to get to, even with cables crisscrossing in front of the bar and computers clamped to it. In titanium, our coupled stem still only weighs 250 grams in a 110mm length with an oversized (31.8mm) handlebar clamp.