Red Bull denies its new front wing design is teetering on the brink of legality, saying claims that the component is flexing under stress are untrue.
Red Bull's upgraded RB13 delivered a good performance in the opening day of running at the Hungarian Grand Prix.
But the car's new front wing, penned by design guru Adrian Newey, has attracted a lot of attention from rival teams and the FIA amid suggestions that flexing - outlawed by F1's technical rules- could be occurring.
The rumors nevertheless prompted a minor redesign, according to Red Bull engineer Paul Monaghan.
"We took the brace (modification) out and put it back in again," Paul Monaghan said in Hungary yesterday.
"In our opinion the wing is entirely legal. We satisfy every FIA requirement."
Monaghan says any suggestion the wing is obviously flexing is just an "optical illusion".
"If you had more knowledge of the design of the wing and the shape I think you'd realise it's nothing more than a storm in a teacup," he insisted