This historical system is renowned for its robustness and ease of maintenance. It uses two movable crowns and two helical springs .
Introduced for high-end hubs, the EXP system optimizes weight and rigidity by integrating one of the sprockets into the hub. It uses a single spring and a single moving sprocket .
DEG is the latest evolution, targeting extreme performance and full-suspension mountain bikes. It is often associated with DF (Degrees of Freedom) technology.
- Record responsiveness: With 90 teeth, the hub achieves a minimum engagement angle of 4°
- DF (Degrees of Freedom) Technology: This innovation reduces pedal kickback (the feedback felt when the suspension compresses) by allowing the freehub body a small amount of free rotation within a defined range. This is essential for mountain bikes with high kinematics to free up the suspension for more efficient operation.