XRAY 303173-H Hard Rear Long Right Suspension Arm - Low Traction Setup  [XR-303173-H]

XRAY 303173-H - Rear Suspension Arm Long Right - Hard
Price:
CAD$18.23
Brand:
XRAY
Model:
XR-303173-H
Condition:
Brand New
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Improve Handling with XRAY 303173-H Rear Long Suspension Arm

The XRAY 303173-H Rear Suspension Arm is aimed at racers and hobbyists who want crisper handling across varying track surfaces. This long right arm, moulded from a hard composite, is tuned to boost rear traction and keep the car predictable on low grip layouts.

Extra Length to Increase Rear Traction

Configured 7mm longer than stock arms, this part is intended for tricky low-traction sections. The added reach helps the rear tyres find more bite, improving stability when corner exits are slippery.

Lowered Mounting for Better Centre Control

The arm keeps the standard shock mount and adds a 4mm lower position option that requires an optional lower ULP shock tower. Using the lower mounting drops the centre of gravity and sharpens stability through chicanes and tight turns.

Hard Composite Durability and Mounting Versatility

Manufactured from a purpose-formulated hard composite, the arm balances weight savings with toughness for regular track use. It also includes an integrated anti-roll bar mount for riders who want extra rear roll control.
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.

Will the XRAY 303173-H fit older T4 variants?

Compatibility varies by chassis revision; check your T4 spec sheet and compare mount points. If your model shares the same rear hub and shock geometry as the newer T4 specs, the arm will typically fit.

Do I need different shocks with the lower 4mm option?

Not necessarily, but you may need to adjust shock length or use the optional lower ULP shock tower to obtain correct geometry. Fine tune spring rates and rebound to suit the new mounting height.

How does the integrated anti-roll bar mount affect handling?

It lets you dial rear roll stiffness without adding complex linkage. Adding or stiffening the bar reduces body roll and can stabilise rear-end grip during high speed transitions.

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