Rear Carbon Upper Clamp for X4F - XRAY 301558  [XR-301558]

Compact rear upper clamp designed for X4F chassis

This rear upper clamp reduces unsprung mass at the rear and shifts effective weight forward to fine-tune handling. The integrated body post holder is built into a single carbon component to maintain a small mounting footprint while preserving flex bulkhead adjustability.

Precision CNC machining from quality carbon fiber ensures dimensional repeatability so you can make consistent setup changes. The item is provided as two parts and fits where an X4F rear upper clamp is required.

Tuning overview: installing this lightweight clamp typically reduces rear inertia and biases the chassis forward, which can be used to alter rear grip, rotation and cornering balance as part of a wider setup strategy.

Select this clamp when you need a lightweight, integrated rear mount to influence balance without changing suspension geometry; final performance depends on the full chassis and track conditions.