2026 rules · Updated for 2026
The F1 sequential gearbox explained
How paddle commands move rapidly through a fixed sequence of racing ratios.
Quick answer
An F1 gearbox changes through sequential ratios using steering-wheel paddles and hydraulic actuation. The driver requests each shift while electronic controls protect the powertrain within the rules.
Sequential movement
Unlike an H-pattern road gearbox, the mechanism steps up or down through the ratio order. That makes shifts fast and removes the need to select a distant gate.
Shift control
The driver pulls a paddle, and control logic coordinates torque reduction, actuator movement and reapplication so the shift completes without destructive load.
Part of the chassis
The casing sits between the power unit and rear suspension, carrying structural loads and influencing wheelbase, cooling and aerodynamic packaging.