Note: understeer in FR cars is one of the most common handling issues — especially in stock or comfort-oriented setups. The front tires must manage both steering and most of the braking load and as a result they’re easily overwhelmed, particularly during corner entry or mid-corner.

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Causes

 

• Heavy front weight bias: front tires are overloaded during cornering and braking

• Stiff front suspension or ARB: front tires can’t compress and grip effectively under lateral load

• Soft rear suspension or ARB: rear stays planted, resisting rotation

• Brake bias too far forward: overloads the front tires under trail braking

• Conservative front alignment: low camber reduces turn-in bite

• Poor weight transfer control: front tires can’t dig in and rotate the car

 

Entry Phase Understeer:

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• decrease front brake bias

• much softer front ARB

• much softer front springs

• less rear Aero

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Mid Corner Understeer:

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• much softer front springs

• much softer front ARB

• stiffen rear springs

• stiffen rear ARB

• more negative front camber

• less rear Aero

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Exit Understeer:

• softer front damper rebound

• stiffen rear rebound damper

• increase front aero

• less rear Aero

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