These Associated factory replacement front suspension arms are designed for the RC10B7.1 and are molded from carbon-filled plastic for added rigidity. Sold as a left and right pair, they feature an open X-brace lattice structure to reduce weight while maintaining strength. Direct replacements for worn or broken arms, they install without modification to restore proper front suspension geometry. Features: Carbon-filled plastic construction Left and right arms included Open X-brace lattice design Factory replacement fitment for RC10B7.1 7/7/26 cs