TRF421X D Parts, suspension arm set

TRF421X D Parts Lower Suspension Arm 2 is a focused replacement set for the TRF421X platform, supplying 2 lower suspension arms for the D section of the chassis. The set supports precise maintenance work where suspension geometry depends on the correct arm shape and fit, making it a practical choice for rebuilds, repairs and regular workshop preparation. Within an RC chassis, the lower suspension arm forms a key link between the suspension mounting points and the wheel assembly, guiding movement as the suspension works over changing surfaces. Using the specified D Parts set helps keep the build aligned with the intended TRF421X layout instead of mixing unmatched components. The 2-piece format also suits common service needs, whether one arm is needed immediately and the second is kept in reserve, or both matching positions are refreshed together during a larger overhaul. On the bench, this set fits naturally into routine chassis care after contact damage, wear or a full strip-down. It also makes sense as a spare kept with race-day equipment, where having the correct TRF421X suspension parts close at hand can shorten interruptions between running sessions.