XRAY 323116-H Rear Lower Composite Suspension Arm, XT2 2028, 4-HOLE Solid Hard  [XR-323116-H]

This rear lower suspension arm is a solid, 4-hole composite component designed for the XT2 2028 chassis. Molded from a hard composite blend, the arm is intended to reduce unwanted flex, giving a firmer, more direct response that helps stabilize handling on medium to high traction surfaces.

Geometry notes: the design accommodates the revised shock tower layout and provides two additional shock mounting positions, allowing the arm to work with updated shock tower setups and with an anti-roll bar arrangement. That pairing helps to refine roll control without adding unnecessary compliance.

Tuning role: fit this arm when you want reduced chassis flex and crisper turn-in, or when testing setups for higher-traction conditions. Swapping between the available hardness options (medium, hard, graphite) lets you tune the front/rear balance and steering feel without changing suspension geometry.

Installation tips: check alignment with the revised shock tower mounting points and confirm anti-roll bar clearances during assembly. Validate settings trackside and make incremental changes to avoid over-tuning the setup.