While individual time trials require a level of personal optimisation that's rarely if ever surpassed elsewhere in the Tour de France, a team time trial is a different beast entirely, and involves not only getting each individual rider's set up on song, but also making sure the whole squad works as efficiently and effectively as a single unit to deliver the team (or in this case a single rider) to the line first, and with it the first yellow jersey.
We've already brought you a head to head of Tadej Pogačar and Jonas Vingegaard's respective time trial bikes, but while cruising the team hotels in search of juicy tech, my colleagues on the ground found the bikes of Alpecin-Premier Tech set up with a bit of tech that has essentially become obsolete: the hub-mounted speed sensor, in this case from bike computer sponsor Wahoo.