The Kyosho UM577B Suspension Arm Set provides a straightforward replacement that helps restore suspension performance on the Ultima SB. These arms focus on durability and steady handling where terrain is demanding.
Engineered to resist regular wear from off-road use, the arms support stable wheel movement and predictable handling characteristics. That consistency makes setup changes easier to dial in at the track.
UM577B aligns with the Ultima SB mounting points to allow a clean exchange with existing components. Regular checks of pivot holes and fasteners will keep the suspension working reliably over time.
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