XRAY 303173-G Long Right Graphite Rear Arm for T4 2020  [XR-303173-G]

XRAY 303173-G - Rear Suspension Arm Long Right - Graphite
Price:
NZD$25.78
Brand:
XRAY
Model:
XR-303173-G
Condition:
Brand New
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Rear Graphite Arm Built for Track Versatility

The XRAY 303173-G Rear Suspension Arm Long Right is a high grade graphite upgrade aimed at drivers who want a tunable rear end on their T4 2020. Its composite construction keeps weight down while providing consistent flex characteristics lap after lap.

7mm Extension to Boost Rear Grip

Compared with the short arm, this long version adds 7mm of length to shift traction characteristics toward the rear. That extra reach helps in low grip conditions and also smooths out behaviour on more adhesive surfaces.

Stability Gains and Alternative Shock Position

The arm features a built in anti-roll bar mounting point and is designed to be robust under racing stresses. It retains the standard shock position and offers a 4mm lower shock mounting option; to use that lower position you will need the optional lower ULP shock tower. Using the lower mount lowers the centre of gravity and improves steadiness through chicanes and complex turns.
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.

Can I fit this to my existing T4 2020 without other parts?

Yes, the arm is made for the T4 2020 platform and fits using standard suspension pins and hardware, unless you opt to install the lower shock position which needs the lower ULP tower.

What tyres and compound pair well with this arm?

Medium to softer compounds benefit most from the extra rear bite, but exact choice depends on track surface and conditions. Test a couple of compounds to find the best balance.

Does the graphite flex more than plastic arms?

Graphite has a different flex profile than many plastics; it tends to be stiffer in critical areas while offering predictable bending under load, which many racers prefer for consistent handling.

How should I set up camber and toe after fitting?

Start with your usual baseline setup and make small camber and toe adjustments while monitoring tyre wear and steering feel. The longer arm may need minor tweaks to restore your preferred turn in.

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