In the official PR it says they change the route only...
Slight changes have been made to the course of stage 12 for motorbikes and quads. They will start after the cars but at the same place as them, so they will not follow a separate route in the first part of the stage.
Following the study of the safety conditions for bikes and quads race tomorrow, despite a first modification of the stage announced this afternoon, having consulted the competitors grouppedat Fiambala’s marathon bivouac, the Race Direction has taken the decision to cancel the 12th special stage for bikes and quads.
The first bike will start the liaison from Fiambala to San Juan’s bivouac at 6 a.m.