The risk of a post-race protest from Ferrari prompted Mercedes to make modifications to its radical wheel rim design ahead of the United States Grand Prix, Autosport has learned.
As Mercedes seeks answers to its tyre temperature struggles in the Austin race, it has emerged that the team made last-minute tweaks to a rear wheel rim concept that had been under the spotlight ahead of the weekend.
The unique design of the Mercedes rim - which features internal holes to help blow air - has been viewed as one of the factors boosting the German manufacturer's recent run of victories.
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