Optimizing Every Second

Leading into the development of the new Propel range, an all-new dynamic mannequin was created. The new body form is much more accurate to the rider’s true body shape. This was made possible by a new 3D printing process versus the extremely expensive and time- consuming carbon fiber molding used for the original Grischa.

Grischa 2.0 features a more accurate leg reproduction, especially overall leg length and thigh shaping. And the new foot form is an exact replication of the foot and shoe combination, so an actual shoe is no longer required.

The head is now interchangeable and the neck angle highly adjustable, making it easier to test airflow over and through a helmet and down the back. The head form can also be swapped out for a different form using integrated temperature sensors to measure heat dissipation for helmet designs. And Grischa’s new modular construction (3D printing versus carbon molding) makes it easier to change different riding kits.

Frame weight can be a subjective variable, depending on what is considered a frame. For this comparison, we define a frame as follows:

Size medium, unpainted production frame and fork, including headset and top cap, rear derailleur hardware, and all production hardware (water bottle bolts, etc.).

Units: All weights are measured in grams (g).

Frameset stiffness was assessed using industry-standard protocols, with size medium framesets. We tested both steering and pedaling stiffness with a steel dummy fork installed. Our testing determined how much the complete frameset flexed under load.