TB-04 Rear Knuckle Arm Aluminium for Tamiya TB-04 TB4022 by GPM  [TB4022]

Performance aluminium rear knuckle for TB04 setups

Supplied as 1 pr, this aluminium rear knuckle arm replaces the stock plastic rear knuckle on Tamiya TB04 touring chassis where compatible. It is intended strictly for RC vehicle use.

Benefits of aluminium: improved rigidity and resistance to wear compared with plastic knuckles helps the rear suspension hold alignment through repeated laps, aiding consistent handling and setup repeatability.

Fitment guidance: confirm your TB-04 variant uses the same rear knuckle geometry before buying. Typical fitting steps include removing the wheel hub, transferring or fitting bearings, and reassembling with original hardware. Check thread engagement and bearing preload on completion.

Setup impact: aluminium knuckles alter stiffness and can affect steering feel and rear traction; adjust toe and camber one change at a time and monitor hex screw torque to prevent bearing preload changes.