Molded composite front lower suspension. Standard hard-composite mixture arms (labeled H ) for rubber-tire racing. The specially-formulated composite material allows for a very light yet very durable suspension arm that can withstand the rigors of high-performance racing with rubber tires. Can be also used for foam tires. Fits XRAY T2, T3 cars. The new optimized suspension arm gives improved traction and easier handling, and features a single optimized shock mounting position and integrated anti-roll bar mounts.