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Roll Bar Overview:

XRAY X4 Rear Anti-Roll Bar. These anti-roll bars are intended for the 2022 and 2023 X4. The stock anti-roll bar for the aluminum chassis is 1.3mm (XRA303823) and the stock anti-roll bar for the graphite chassis is 1.2mm (XRA303822). Package includes one anti-roll bar.

Roll Bar Thickness:

Softest
1-Dot

1.1mm – XRA303821
2-Dot

1.2mm – XRA303822
3-Dot

1.3mm – XRA303823
4-Dot

1.4mm – XRA303824
6-Dot

1.6mm – XRA303826
8-Dot

1.8mm – XRA303828
Hardest

Effects of Rear Roll Bar Changes

Roll Bar

Characteristic
Softer

  • Increases chassis roll
  • Increases rear grip in corners
  • Decreases on-power steering
  • Car responds more slowly in changes of direction
Stiffer

  • Decreases chassis roll
  • Decreases rear grip in corners
  • Increases on-power steering
  • Car responds quicker in changes of direction

This product was added to our catalog on November 21, 2023

  • XRAY X4

jon Debenedetti Monday, Jan 8 2024 (about a year ago) XRAY X4 Rear Anti-Roll Bar (2022-2023) (1.1mm) great site with all that I need and more….
super fast shipping with great customer service View all reviews

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