The grid opens at 1:30 PM for a 2:00 race start, and the mechanics all enter the track together to take out their equipment to service the cars on the grid. The equipment and extra sets of tires travel on trolleys from each team's garage area to the grid. Minutes before the teams around allowed to enter the grid, the mechanics all standing in a line up waiting for the go-ahead to enter the grid together.
Teams Wheel Out all the Tires and Other Tools to the Grid
From Brad Spurgeon, former About.com Guide
Before the starting grid opens at 1:30 PM before a race, the team mechanics take out their tools and the extra car tires to the grid.
Team mechanics entering the grid at the Spa-Francorchamps circuit before the Belgian Grand Prix, rolling out with trolleys the extra tires and tools.
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