The 3Racing SAK-D6822/RE Aluminum Rear Upper Arm is manufactured to tight tolerances to maintain suspension geometry on the Auper D6 chassis. Its alloy construction reduces compliance compared with plastic parts, giving consistent behaviour during aggressive driving and repeated setup changes.
This arm provides stable reference points for camber and roll centre adjustments, allowing measured setup changes to be replicated between sessions. The hardened surface finish improves resistance to wear at pivot points.
Material selection and machining quality focus on longevity under race conditions, reducing the frequency of part replacement and keeping suspension settings stable over time.