This is the main upgrade in the Pro S D version is the parctical central joint, which allows for easier and more flexible attachment of bikes, especially those with unusual frame shapes. It improves usability compared to the standard Pro S model.

The knob used to tighten the clamp is placed at the front, making it easier to reach and operate, especially when securing bikes in tight spaces.

The clamp includes a rubber insert that protects your bikes frame from scratches and damage during transport. This is ideal for preserving the finish on high-end or painted frames.

The clamp and the bike locking system can rotate 360°, which allows for full rotational flexibility, making it easier to position and secure bikes of various shapes and sizes.