If you want tighter control of your XRAY X4's handling, the XRAY 302310 Aluminium Caster Bushing set is a compact way to tune front and rear geometry. This four-piece set sets the front caster to 3 deg and the rear to 0.5 deg, giving you predictable reactions across a variety of layouts.
Made from light yet tough aluminium and finished in a durable black coating, these bushings are machined to tight tolerances for a secure fit. The accurate machining helps reduce slop and improves steering feedback, while each bushing is marked with a single dot to speed up identification during servicing.
By changing caster angles you can balance straight-line stability against turn-in agility. Use the 3 deg front to help the car track cleanly at speed and the 0.5 deg rear to keep rotation predictable through corners, making these bushings useful for both fast circuits and more technical sections.
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