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XK100 Braces

A sneaky peak into our development workshop. Soon to be available from Swallows Racing for the Jaguar XK8 / XKR these new improved strut bars with added gussets for additional stability, they will come in a powder coated finish for longevity.

Why adding braces is a good idea? When you corner, the whole car’s chassis is twisting slightly. In the front (and perhaps at the back, but not so often) the suspension pillars will be moving relative to each other because there’s no direct physical link between them. They are connected via the car body, which can flex depending on its stiffness.

A strut brace bolts across the top of the engine to the tops of the two suspension posts and makes that direct physical contact. The result is that the whole front suspension setup becomes a lot more rigid and there will be virtually no movement relative to each side. In effect, you’re adding the fourth side to the open box created by the subframe and the two suspension pillars.

Is there a need to have our vehicle chassis strengthened?

The chassis of the car is the part which experiences most of the abuse from the driver. It is particularly due to the weight transfer of the vehicle body during fast cornering, hard braking or hard acceleration. In some instances, the weight transfer during cornering may cause one side of the vehicle to experience as much as 3 times more force than the other side of the vehicle, causing enormous chassis flex/ vehicle body deformity and twist, consequently causing tires to lose grip. Deformity and twisting of the vehicle chassis during cornering may cause negative handling traits such as understeering and oversteering.


  • David Carter
    December 14, 2021 at 10:35 am

    Hi there, wondering when this will be available?

    Many thanks Dave

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