Red Bull sought clarification from the FIA regarding flexible rear wings at pre-season testing, according to a report. The subject of flexible rear wings has been a hot topic of conversation for several months. Over the winter break, the FIA tightened rules surrounding rear wings and conducted tests at the season-opening Australian Grand Prix. After it found all teams to be compliant, it seems the measures were not enough to cunter 'mini-DRS' phenomenon. Now, the FIA has opted to further adjustments that will be introduced from the second round of the season in China. The new modification affects the maximum size of the opening of the rear wing. The limit is reduced from 2 millimeters to 0.5 millimeters at a load of 75 kilograms, with a tolerance of 0.25 millimeters in China due to the abrupt adjustment. In Japan, there is no longer a tolerance and the rear wing is allowed a maximum gap of 0.5 millimeters. Auto Motor und Sport now report that Red Bull knocked on the FIA's door about the rear wings during the winter test in Bahrain. The Milton Keynes-based squad reportedly suspected McLaren, Ferrari, Alpine and Haas of still using a controversial set-up of the rear wing. The big question now is whether the rule change is going to create a new balance of power in F1. McLaren displayed imposing pace during the Australian Grand Prix, taking victory with Lando Norris.
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