Spanish GP: F1 flexi-wing clampdown explained ahead of Circuit de Barcelona-Catalunya race

28 May 2025, 12:01 | Updated: 29 May 2025, 11:23

The 2025 Formula 1 pecking order could be shaken up due to new tests that will restrict bodywork flexibility from this weekend’s Spanish Grand Prix, so here’s all you need to know about the major change.

What is the new F1 flexi-wing regulation?

The FIA announced in January that more stringent flexibility tests on front wings would be introduced from the ninth round of the season in Spain.

In short, flexible bodywork is outlawed in F1 but there is a tolerance. However, this leeway will be lessened from 15mm to 10mm on the front wing and its flap.

This may not sound like much but in a sport where the difference between a legal and an illegal car can be millimetres, it is a key change.

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