Tamiya TT02 Alloy Front Knuckle Arm with Bearing TT2021B by GPM  [TT2021B]

Alloy front knuckle for TT02 tuning

This TT2021B alloy front knuckle arm is an aftermarket steering hub made for use on the Tamiya TT02 chassis. It replaces the standard plastic knuckle with a metal alternative that accepts a ball bearing at the steering pivot. The part is supplied as a 1pr set and is intended for hobby-grade tuning and maintenance.

Installation requires retaining or reusing the original nylon piece where specified; the kit note specifies the original nylon component must remain in place. During fitment check steering linkage alignment and confirm the bearing is seated and oriented so the pivot rotates freely without binding. Use the TT02’s existing hardware and follow the factory torque guidance for the assembly.

As a tuning part this alloy knuckle increases assembly stiffness versus a stock nylon unit and positions a bearing at the pivot to lower friction and wear. Expect a noticeable change in steering feel and longer service life when combined with proper maintenance, and adjust handling settings step by step when tuning.

Choose this alloy knuckle to firm up the steering assembly and reduce pivot friction, and ensure correct fit by reusing the specified original nylon parts during installation.