​Two high-speed spins in as many race weekends has a way of clarifying things. Red Bull is heading to Belgium’s Spa-Francorchamps this weekend with a conventional rear wing, abandoning the rotating “Macarena” design that presumably sent Max Verstappen into the gravel at both the Austrian Grand Prix and Silverstone.The change will be made to both cars.AdvertisementAdvertisementAdvertisementLaurent Mekies, the team’s principal, told BBC Sport that engineers identified the issue during testing that followed the Silverstone weekend, with the suspected fault involving the wing’s inability to restore airflow attachment at sufficient speed after snapping shut at the end of a DRS zone.Ferrari pioneered a new design this season where the rear wing’s upper flap rotates more than 180 degrees in straight-line mode, generating a greater drag reduction and therefore higher top speed. Red Bull quickly followed with its own design.The traditional wing Red Bull is falling back on functions as expected – without the aggressive flex, without the added performance benefit, and without the associated danger.Spa-Francorchamps is one of the fastest circuits on the calendar, and a sudden loss of rear downforce there carries serious consequences. The twisting wing also benefits the car in a straight-line. And with Spa being a power-limited track, this may also work against the Milton Keynes outfit, which has previously struggled to maximize its energy recovery and usage.AdvertisementAdvertisementAdvertisementThe Macarena wing had been running since Miami, and it attracted attention partly because Red Bull’s active aerodynamic system creates the largest opening on the grid, introduced with technical director Pierre Wache at the helm of that development.While Ferrari’s version rotates by up to 270 degrees in one direction, Red Bull’s rotates by up to 160 degrees in the opposite direction.A more aggressive concept – which, as it turns out, comes with more aggressive failure modes. What compounded the difficulty for Mekies and his team was having pinpointed the cause of the Austria failure, only to be confronted by an entirely separate problem at Silverstone.Verstappen was running third with four laps remaining at Stowe when the wing failed to close in time, and the sudden loss of rear downforce sent the car into a spin with almost no warning.AdvertisementAdvertisementAdvertisementHe called the situation “super dangerous” after Silverstone, and you can understand why – he said he was “lucky” and that he could have “really hurt” himself.Mekies, to his credit, didn’t try to sugar coat the situation. “He’s right not to be happy,” he told reporters after the race.“It is very unpleasant for drivers to be let down by the car in high-speed corners in two consecutive races, let it be for two different reasons. And it is, in a much lower scale, also extremely unpleasant for us as a group to send our drivers to the gravel trap.”The FIA is