2026 rules · Updated for 2026
F1 anti-roll bars explained
How linked suspension stiffness controls body roll and adjusts handling balance.
Quick answer
An anti-roll bar links the left and right suspension so it resists different wheel movement across an axle. Its stiffness influences body roll and the balance between front and rear grip.
01
When it works
In a corner, the outside suspension compresses more than the inside. The bar twists against that difference and adds roll stiffness to the axle.
02
Handling balance
Changing relative front and rear roll stiffness affects how readily each axle uses its grip, helping engineers tune understeer and oversteer.
03
Kerb trade-off
A stiff link controls the platform but can make one wheel disturb the other over uneven surfaces. Street circuits may demand a different compromise from smooth tracks.