Tamiya TRF418 Front Lower Arm Shaft (spring steel) by Arrowmax AM-417-BC10  [AM-417-BC10]

Front lower arm shaft for TRF418

This front lower arm shaft is an RC-scale replacement part made for mounting in the front lower arm location of Tamiya TRF418 chassis layouts. Arrowmax manufactured the AM-417-BC10 shafts from spring steel and finished them with a titanium nitride (TiN) coating to lower surface friction and improve wear resistance.

As a front lower arm shaft, the part influences suspension articulation and how smoothly the lower arm pivots under load. The TiN coating reduces metal-on-metal drag where the shaft contacts the arm or bushings, helping maintain consistent movement through repeated runs. The listing shows the item supplied as 2 pcs suitable for the front lower arm positions.

Installation is straightforward for standard TRF418 arm mounts, but confirm fit and clearance with your existing arms and bushings before final assembly. Use routine maintenance checks to verify the coating remains intact and to replace shafts if excessive wear appears.