XRAY 303181-H X4 Carbon Fiber Fusion Rear Left Lower Arm - Hard Race Day Spec  [XR-303181-H]

XRAY 303181-H - X4 Cff Carbon-fiber Fusion Rear Lower Arm - Hard - Left
Price:
NZD$47.76
Brand:
XRAY
Model:
XR-303181-H
Condition:
Brand New
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Track-focused upgrade for X4 rear suspension

The XRAY X4 CFF Carbon-fiber Fusion Rear Lower Arm - Hard is crafted for the left rear position to give racers a reliable mix of strength and controlled flex. The carbon fibre plate paired with composite material keeps the arm light but robust.

Composite to carbon fusion for consistent performance

By fusing carbon fibre to a composite body, XRAY achieves a stiff core with calculated compliance at the outer layers. That tuned construction delivers consistent handling from lap to lap on demanding surfaces.

Optimised for carpet and high traction surfaces

On carpet or grippy asphalt the hard variant reduces suspension movement under load, helping maintain a predictable chassis balance and smoother corner exits.
Remark :
Due to limited stock availability, please notice that some XRAY items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What tuning benefits does the carbon fusion bring?

The fusion build increases fore-aft and lateral stiffness where needed while allowing controlled flex elsewhere, giving a more predictable handling envelope for high grip tracks.

Should I change shock rates with this arm?

You may want slightly firmer shock damping to match the reduced arm compliance. Test small increments to find the ideal balance for your track conditions.

Is this part compatible with standard X4 setups?

Yes, it uses the same mounting points as stock rear lower arms. Check that ballstud and hinge-pin fitment match your existing hardware during installation.

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