New Moto Guzzi Door Mats Available Now
Looks like someone has moved the linkage rod for the rear brake down toward the shaft CL to make the rear brake more progressive, probably a good idea.
Your rear brake linkage rod has been relocated to a hole closer to the shaft. That would result in a longer "throw" at the pedal but better modulation of the brake, as well as increasing available force (torque = force X distance) for the same amount of foot force. The factory provided just a single hole. How does it feel?