Kyosho UM577 Ultima SB Reinforced Suspension Arms  [KY-UM577]

Kyosho UM577 - Suspension Arm Set (Ultima SB)
Price:
CAD$10.56
Brand:
Kyosho
Model:
KY-UM577
GTIN:
4548565444373
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Restore Performance with Tough Replacement Arms

For hobbyists focused on preserving classic Kyosho builds, the Kyosho UM577 Suspension Arm Set delivers a straightforward upgrade. Made for the Ultima SB line, these arms help keep older models reliable while improving handling across loose and firm surfaces.

Primary Benefits of the Kyosho UM577 Suspension Arm Set

  • Compatibility: Made specifically for the Ultima SB to ensure correct fit and alignment.
  • Durability: Built from resilient materials to cope with regular off-road use and club track sessions.
  • Precision Engineering: Manufactured to tight tolerances for steadier steering and predictable suspension travel.

Practical Reasons to Fit This Set

The Kyosho UM577 Suspension Arm Set is an ideal service part for both weekend restorers and active racers. Its sturdy construction and accurate fit make it easy to swap in, giving vintage Ultima SB cars renewed control whether youre running on gravel, grass, or club race circuits.
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 these arms fit older Ultima SB chassis versions?

They are designed for the Ultima SB platform, but fitment can vary by chassis revision. Check part numbers and compare mounting points before fitting.

How should I inspect the arms after heavy running?

Look for hairline cracks, wear at pivot holes, and play at ball studs. Replace if any deformation or excessive wear appears.

Are there tuning mods recommended with these arms?

Many modders add stiffer springs or adjust camber links to match the arms. Ensure servo and link geometry suit the revised suspension feel.

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