The Kyosho UM573 Main Chassis is the backbone for the Ultima SB from the Legendary Series. This chassis delivers a sturdy platform that improves on-track stability and handles the stresses of spirited driving, making it a dependable choice for repair or upgrade projects.
Precision engineered, the Kyosho UM573 Main Chassis is built to take sustained use on the race circuit. Its form supports consistent balance and predictable handling so drivers can push harder through fast sections and tight turns.
Engineered specifically for the Ultima SB, this main chassis fits cleanly and works with common setups in the Legendary Series. Whether replacing a worn frame or stepping up to a stiffer base, the UM573 boosts durability and service life.
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