Multiple theories have floated around the internet, however, a video has surfaced of someone, who looks to be one of Hamilton’s pit-crew mechanics, explaining why the Mercedes driver does this.
@mongaloyd Honestly, thought it was just for ‘magic’ 🪄 #fyp #f1 #formula1 #lewishamilton #mercedes #f1paddock #f1tiktok #mercedesamg #lh44 #f12022 ♬ original sound – Alpine F1 Team
Fans started to speculate more after the 2021 Azerbaijan Grand Prix restart, when he stalled, shot straight past Red Bull’s Sergio Perez and ended up not taking any points from that race. Some thought that Hamilton may have subconsciously adjusted the brake balance with his hand being there.
Now, the pit stop mechanic has shown in the TikTok video that it is because of the switch mechanism at the back of the steering wheel. By keeping his hand behind the switch it stop Hamilton from accidentally shifting back. Hamilton hasn’t ever spoken on this technique and explained his reasons behind it but as it looks like this is a member of his pit crew, it looks like this is his reasoning behind it.