> Coincidentally, that row of LEDs on the top of the wheel is supposed to tell drivers when to shift, but teams found out a long time ago that the visual indica

> Coincidentally, that row of LEDs on the top of the wheel is supposed to tell drivers when to shift, but teams found out a long time ago that the visual indicator wasn't being processed fast enough by the drivers' brains, so now drivers get a little beep in their ear when they're supposed to up/downshift. I'd wondered where those went, it's amazing what they optimize to buy milliseconds per lap.