might be an independent torque support for the caliper, to avoid influence on the swingarm. some downhill MTB's have that too.
I did way earlier,then http://forums.13x.com/index.php?threads/motogp-jerez-testing-2019.356811/page-3#post-5436121
Well, if we're going to spend time patting ourselves on the back....... http://forums.13x.com/index.php?threads/motogp-valencia-test-2018.356644/page-6#post-5432292 From David Emmett @ MotoMatters: "They brought a couple of highly visible updates, and used a highly visible sensor. The sensor they used is visible not because of its placement, but because it shines a bright light onto the asphalt below the bike. It is used to measure the precise location of the bike above the asphalt, creating a reference for how the swingarm is working, and how well the rear is sticking to the ground, especially during braking. It is a sensor they have used before, though in previous iterations – such as at Sepang in 2015 – it has been attached to the back of the swingarm, rather than the front."
Spring loaded idler on the return side of the chain? Works on a bicycle to “shorten” the chain for the smaller rear gear. Just joking. Well mostly. You never know what these crazy MotoGP teams might try. Outlaw one thing and they will just spend the same amount of money trying something else that is not outlawed.
Or spend multiple millions more, like they did with the seamless gearbox since dual clutches were outlawed. https://www.motorcycle.com/ask-mo-a...wed-in-motogp-yet-seamless-gearboxes-are.html