The car’s chassis is the part subjected to the greatest loads during dynamic driving. This is particularly pronounced due to the transfer of the body’s weight during fast cornering, heavy braking or hard acceleration.
When cornering, weight transfer can cause one side of the vehicle to be loaded up to three times more than the other. This results in significant deformation and twisting of the chassis or body, causing the tyres to lose grip.
Deformation and twisting of the chassis during cornering can cause undesirable handling characteristics such as understeer and oversteer.
This Ultra Racing front lower chassis brace is designed to increase body stiffness in the mounting area.
- Design: front lower chassis brace
- Number of mounting points: 2
Suitable for: BMW X4 II (G02).
Approval
This part has no TÜV certification (ABE, TTG or Teilegutachten).

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