Based on the Ratchet EXP system, the Ratchet EXP OS also connects the ratchet to the hub by integrating the threaded ring with the ratchet. This allows for the use of a single spring, which improves engagement accuracy as the ratchets are consistently at the correct angle.

The Ratchet EXP OS increases the number of teeth from 24 in the conventional system to 30, which in turn reduces the angle of engagement. On the eMTB, where there is a certain amount of free movement of the cranks due to the motor, this provides a small advantage. To ensure the reliability of the system, the Ratchets are made of steel for reduced wear, resulting in better durability.

The surface of the Ratchet EXP OS double thread is 11% larger than the regular Ratchet EXP thread. A double thread means that the thread has two starts and two threads. Thus, in one turn, a screw with two threads advances twice as far as a screw with one thread.

On account of the greater loads on eMTBs, the new generation of Hybrid wheels use larger ball bearings than the 240 EXP MTB hub. The larger ball bearings distribute loads over a larger area of the running surface, whereby less wear occurs.

The FEM analysis enabled axle optimisation by simulating its structure under a specific load case to identify the location of the bending loads occuring on the axle. Once located, these loads can be distributed uniformly across the axle by adding more material at the right place: the ball bearing area.