The XRAY 306173 X4F Rear Short Carbon Battery Holder is constructed from lightweight carbon fibre to secure the battery in rear short placements while maintaining chassis stiffness where it matters.
Purpose-built for the X4F, this holder reduces battery play and helps fine-tune weight bias. The carbon fibre panel keeps the pack stable under corner loads, aiding repeatable lap performance.
Carbon fibre offers high stiffness with low mass, which helps the car respond cleaner to setup tweaks and track conditions. Fitting a carbon holder is a straightforward upgrade for better handling and reliability.
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