Formula 1 car must have a conventional sprung suspension. It is forbidden to use any system, such as active suspension, which changes the suspension or its geometry while the car is moving.
Interconnected suspension systems (e.g. FRIC, Front and Rear InterConnected) are forbidden – response of front suspension must be result only from changes in load on the front wheels and response of rear suspension must be result only from changes in load on the rear wheels. Interconnected systems are banned prior the Hungarian GP 2014.
Suspension elements must have a symmetrical profile for the majority of their length to prevent engineers to (over)use them in aerodynamic purposes.
- Tech: Suspension
Each wheel must be fastened to the car with two tethers each located within a separate suspension element with its own attachments at either end.
The tethers must meet specific tensile strength and stop the wheels coming loose from the car.
Power steering systems are allowed, but must not be electronically controlled or powered. Four-wheel steering is not allowed. The steering wheel, steering column and steering rack all have to pass an FIA impact tests.
FIA F1 2017. Technical Regulations can be downloaded here.