The XRAY 303765 brass chassis T-brace fits the T4'21 to enhance centre stiffness and rear traction. Manufactured from brass, it increases rear ballast and provides an easy way to change chassis flex to suit different track demands.
Fitting this brace helps the rear stay planted when driving aggressively, which leads to more consistent lap times. The extra mass at the back helps the car feel composed under power.
The design lets you swap screw positions to modify chassis compliance. These adjustments let you balance steering response against mid-corner stability without needing major setup changes.
Attaching the brace to the motor mount ties the centre of the chassis into a firmer structure. That integration improves overall chassis behaviour and reduces unsettled handling at speed.
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