The Kyosho UMW532 Aluminum Rear Suspension Holder is a popular upgrade for Ultima SB owners who want a tougher, lighter rear mount. Machined from high-grade aluminum, it improves durability while helping to keep mass low, which supports more consistent handling during competitive runs.
Made to match the Ultima SB mounting points, this holder helps keep suspension geometry precise under load. The stiffer aluminum construction reduces flex at the rear, aiding predictable responses when cornering and braking on various surfaces.
For hobbyists who push their cars at the track, the Kyosho UMW532 reduces the chance of damage in heavier impacts compared to stock plastic parts. It is a straight swap for the Ultima SB rear mount and is well suited to racers seeking long term reliability.
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