This is an RC-scale replacement set of front and rear upper arms designed for select TAMIYA 1/10 buggy models. The JAZRIDER JR-TFD04-GU parts are supplied as a pair, finished in gun metal, and machined from aluminum to provide a stiffer alternative to typical plastic components.
In practical terms these arms serve as direct replacements for the upper suspension links on the listed TAMIYA models. Installation follows standard arm swap procedures: remove the original upper arms, check and reuse existing pins and retainers where compatible, fit the aluminum arms, and verify suspension geometry and movement through a full range of travel before running.
For tuning, aluminum upper arms help maintain more consistent camber and toe settings under load compared with flexible plastics, making setup repeatability easier when adjusting shock rates, toe, or roll center for track or off-road sessions.
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