This suspension arm set provides crucial replacement components for the front and rear of Kyosho Ultima SB series 1/10 scale 2WD buggies, including models like the Ultima SB and Ultima RT. Crafted from a durable, high-grade composite nylon, these arms are designed to withstand the impacts and stresses of off-road RC racing and bashing, ensuring robust performance and longevity. Replacing worn or broken stock arms restores precise suspension geometry, maintaining optimal handling characteristics, predictable steering, and effective shock absorption essential for superior track performance and overall vehicle stability.