Team Associated ASC81641 Inner Hinge Pin Set

This inner hinge pin set supplies the pivot pins that mount the suspension arms to the front and rear bulkheads on the RC8B4.1.

The inner pins carry every load the suspension sees, so they wear, score, and occasionally bend after hard landings or a crash. Worn pins introduce slop into the arms, which shows up as vague steering, inconsistent rear grip, and accelerated wear on the arm bushings and bulkhead. Replacing them restores tight, free moving suspension pivots and predictable handling.

The set fits the RC8B4.1, RC8B4.1e, and RC8T4.2e, dropping into the original pin locations as a direct replacement for the pins supplied with the kit, so no modification or extra hardware is needed. Because pin condition is easy to overlook, it is worth checking them during routine maintenance and swapping the set whenever the arms feel notchy or show side to side play. Keeping a spare set on hand means a bent pin does not end a race weekend early.