D1-415FA [Aluminum Front Knuckles for RDX] ReveD These are aluminum front knuckles for the RDX. The lightweight, high-rigidity aluminum front knuckles significantly improve the precision of the front end, which is crucial for RC drift, and create an overwhelming rolling feel. The upper and lower arm mounting positions are the same as the RDX original, so you can experience the best performance just by installing them without troublesome settings. (Only the steering tie rod section requires a separate spacer) To reduce the weight increase due to the use of aluminum, the sharp shape aims for weight reduction by eliminating waste to the limit while firmly maintaining rigidity, and the SE (Shiny Edge) processing applied to each edge also improves the sense of quality. Please try the aluminum front knuckles, which significantly improve steering accuracy and a sense of quality!