The GPM Aluminum Pendulum Wheel Knuckle for Traxxas TRX4 is engineered to add controlled mass at the wheel, improving static and dynamic stability during technical crawling. The design concentrates weight at the wheel toe to aid tyre contact and predictable recovery on uneven terrain.
The GPM TRX4023E adopts a bearing-centred arrangement with a delrin collar so the pendulum is narrower near the hub and broader at the lower mass. This geometry ensures the extra mass remains low and effective, enhancing ground grip while keeping the chassis mass biased downward for improved crawl performance.