TRF420 Steel F Direct Cups, RC chassis parts

TRF420 Steel F Direct Cups bring a focused drivetrain upgrade to compatible Tamiya touring car chassis, combining steel construction with extra front-end mass for a more deliberate tuning setup. Each cup weighs 8 g, which is double the weight of the kit-standard aluminum part, so the change is not only about material but also about how weight is placed at the front of the car. The pair is designed for the front drivetrain area, where repeated contact and impact can put stress on rotating parts. Steel gives these cups a stronger basis for that duty, while the included swing shaft caps complete the set with the matching companion parts listed for installation. This is a 2-piece direct cup set rather than a mixed assortment, keeping the upgrade specific to one drivetrain position. Compatibility is stated for TA07 MS, TA07 PRO, TRF419, TRF419X, TRF419XR and TRF420 chassis. In workshop tuning, the added 8 g per cup can be used when a build calls for more weight toward the front of the chassis. On track, that makes this set a practical option for racers refining setup changes through clearly defined hardware rather than improvised ballast.