The XRAY 305357 Aluminum Wheel Hub Offset -0.5mm is a concise tuning part for racers wanting a slightly narrower stance. That half-millimetre change per side can make the X4 more composed on surfaces where grip is limited.
When combined with tyre selection and damping changes, the -0.5mm hubs let drivers tune how the car enters and exits corners. They are best used as a fine adjustment rather than a wholesale setup change.
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