Kyosho IF423HB Hard Rear Lower Arm for MP9 TKI4 - Precision Race Part  [KY-IF423HB]

Kyosho IF423HB - Hard Rear Lower Suspension Arm (LR/MP9 TKI4)
Price:
£8.00
Brand:
Kyosho
Model:
KY-IF423HB
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Improve chassis consistency on MP9 TKI4 with Kyosho IF423HB

The Kyosho IF423HB Hard Rear Lower Suspension Arm is a specialist replacement part for the MP9 TKI4 line. It is intended to withstand intense use and to help maintain reliable suspension geometry for consistent lap performance.

Reduced flex for sharper responses

Made from a harder material choice, the Kyosho IF423HB cuts down on unwanted deflection that can blur handling feedback. Drivers aiming for repeatable setup behaviour will notice firmer turn-in and steadier mid corner characteristics.

Plug and play replacement

As a direct-fit component for the MP9 TKI4 lower rear, the IF423HB requires no chassis alteration. The accurate manufacturing tolerances allow for quick replacement so you can focus on tuning and track time.
Remark :
Due to limited stock availability, please notice that some Kyosho 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 changing to a harder arm require shock adjustments?

Often you will need minor damping or spring tweaks to rebalance the rear. Monitor grip levels and adjust settings incrementally to retain traction.

Is this arm suitable for club racing?

Yes, the IF423HB is well suited to club level competition where durability and predictable handling are priorities. It offers a consistent baseline for setup work.

How do I check for correct fit after installation?

Ensure the arm moves freely on hinge pins, that there is no binding at the shock mount, and perform a quick alignment check to confirm toe and camber are within your usual settings.

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