X4 Above-Arm 1.6mm Rear Anti-Roll Bar XRAY 303846  [XR-303846]

Rear anti-roll bar for precise roll control

The XRAY 303846 rear anti-roll bar is an RC-scale upgrade made for the X4 series rear end and intended to work with both X4 and X4F rear suspension arms. The 1.6mm thickness version is matched to the X4F rear geometry.

Mounting uses a ball-bearing roll bar system so the roll bar spins on bearings, delivering low-friction movement. This bearing support makes changing bars straightforward and keeps adjustments consistent across sessions.

A single screw interface controls height and engagement, enabling fast roll bar height changes without stripping the rear suspension. Laser-etched stripes clearly identify bar thickness so you can replicate setups quickly.

Choose this above-arm mounted anti-roll bar to make compact, trackside adjustments to rear roll stiffness and refine handling balance on X4-series RC touring and race chassis.