X4F-Tuned Above-Arm Rear Anti-Roll Bar 1.6mm XRAY 303846  [XR-303846]

X4 rear anti-roll bar overview

The XRAY 303846 rear anti-roll bar is an RC-scale part intended for the X4 rear end and compatible with X4 and X4F rear suspension arms. The 1.6mm thickness is matched to X4F rear geometry for targeted handling adjustments.

A ball-bearing roll bar system provides bearing-supported rotation so the bar moves with minimal friction. The bearing fitment simplifies swapping bars at the track while preserving a smooth adjustment feel.

Height and engagement are set with a single screw interface that allows rapid changes to roll bar height without dismantling the rear suspension. Laser-engraved markings show thickness to help you reproduce setup choices between sessions.

Use this above-arm anti-roll bar when you need a compact, precise way to alter rear roll stiffness and fine-tune handling balance on X4-series RC competition chassis.