Reve D RDX Alu. Front Knuckle (2pcs) D1-415FAAluminum front knuckle for RDX! The lightweight and highly rigid aluminum front knuckle greatly improves the precision around the front, which is important in RC drift, and produces an overwhelming rolling feeling. The mounting position of the upper and lower arms is the same as the RDX genuine, so you can experience the best performance just by installing it without any troublesome settings. (Separate spacer required only for the steering tie rod) In