What is the difference between the team up and the French link?

The Team Up is an ergonomically re-designed version of the traditional French Link that has addressed all of the inherent design flaws. For instance the arms/cannons are curved reducing the pressure over the tongues sensitive outer edges. The loops securing the lozenge are smaller and the centrally fixed rounded lozenge as opposed to the flat plate of the French Link ensures that the mouthpiece contours smoothly over the tongue. The most reported improvement from riders who have changed from the French Link to the Team Up is a better contact in particular with no resistance in downward transitions ie no head tossing.