XRAY 333721 Aluminium Rear Lower 1-Piece Suspension Holder - Track Upgrade  [XR-333721]

Track Upgrade for NT1 Chassis with XRAY 333721

The XRAY 333721 Aluminium Rear Lower 1-piece Suspension Holder is an important upgrade for RC drivers focused on reliable rear-end performance. Machined from Swiss 7075 T6 aluminum, the part is built to resist wear and keep consistent geometry through repeated runs.

Strength and Consistent Geometry

This holder preserves the NT1 chassis geometry while providing a solid mounting point for the suspension arms. After hard impacts the geometry remains stable, which helps maintain predictable handling. The layout also allows the arms to articulate freely to improve traction and smooth out cornering lines.

Flexible Setup Options

Using square composite bushings derived from the T4 and XB4 models, the XRAY 333721 supports finer vertical adjustment of the inner hinge pins and changes in pin spacing. This expands roll center and geometry tuning choices to help dial in rear balance.

Narrow Profile for Better Grip

The slimmer holder profile brings the suspension arms closer together, increasing rear grip under acceleration and through fast corners. This compact fit is ideal for drivers chasing traction on varied asphalt and carpet surfaces.