DT Swiss Launches Revised 240 Hub

Since its inception the DT Swiss 240 hub is known for its reliability. Cyclists of all disciplines know this number and count on it. We at DT Swiss developed the famous 240 even further and equipped it with the latest Ratchet EXP system to maximize its reliability.

INCREASED BEARING LIFETIME

The integration of the bearing into the threaded ring allows the bearing distance to be maximized. The increased distance further supports the axis, which results in less deflection of the axle and thus protects the bearings and increases their lifetime

Top: new EXP system. Bottom: prior ratchet system

INCREASED BEARING DISTANCE

The bearing distance is limited by the size of the freehub system. In the previous system, the drive side bearing had to be placed next to the threaded ring which meant that the distance could not be increased.The integration of the drive side bearing into the threaded ring increases the bearing distance, resulting in a 15% improvement in axle stiffness.

LESS WEAR

A single cylindrical spring ensures faster full engagement and thus increases reliability.

Top: new EXP system Bottom: prior ratchet system

LESS PARTS

The previousRatchetSystem was constructed with two springs as the inner ratchet was not fixed to the hub shell. The fusion of the ratchet and the threaded ring in the RATCHET EXP hub not only increase durability, it also reduces the overall number of components, making this hub family even lighter.

FASTER FULL ENGAGEMENT

The previous system required two conical springs to ensure proper alignment of the two ratchets. The fixed connection of the inner ratchet of the RATCHET EXP with the hub shell allows to use only one cylindrical spring, to ensure proper alignment of the moving ratchet. This results in faster full engagement and eventually reduces wear.

LESS WEIGHT

Not only the reliability improved. The fusion of ratchet and threaded ring reduces the number of single parts of the system what offers an important advantage.