3Racing SAK-D4820A Sakura D4 RWD Aluminum Upper Arm - Competition Grade  [SAK-D4820A]

3RACING Sakura D4 Aluminum Upper Arm For D4 RWD - SAK-D4820A
Price:
USD$15.20
Brand:
3Racing
Model:
SAK-D4820A
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Race focused aluminum upper arm for Sakura D4 RWD

The 3Racing SAK-D4820A Aluminum Upper Arm is engineered to support precise steering geometry on the Sakura D4 RWD chassis. Manufactured from high-grade aluminum, it is aimed at drivers who adjust suspension settings and need repeatable performance.

Technical features and fitment

  • Material: High-quality aluminum chosen for consistent stiffness and long term durability under repeated track loads.
  • Compatibility: Produced to align with Sakura D4 RWD mounting points for reliable fit and predictable geometry retention.
  • Performance: Improves steering input fidelity and stabilises front end behaviour, supporting tuners chasing consistent lap times.

Use in a race setup

Integrating the 3Racing upper arm into a tuned Sakura D4 RWD helps maintain precise steering characteristics under load and simplifies repeatable setup changes, which is valuable for competitive drivers and serious hobbyists.

How does this arm affect steering geometry tuning?

The firmer aluminium arm keeps suspension geometry more stable, allowing finer adjustments to camber and toe to produce predictable handling changes.

Is any additional reinforcement required for track use?

No extra reinforcement is normally needed; the aluminium construction is designed to withstand the loads typical in competitive running.

What should tuners check after installation?

Verify mounting hardware torque, recheck alignment settings, and confirm suspension travel to ensure the arm integrates with your chosen setup.