Tamiya TA01/TA02/DF01/FF01 Aluminum Rear Knuckle Arm by JAZRIDER JR-TA109-BK  [JR-TA109-BK]

Rear knuckle for Tamiya TA chassis

This aluminum rear knuckle arm in black is specified for RC-scale use with Tamiya TA01, TA02, DF01 and FF01 chassis. It replaces the rear steering/knuckle component to provide a rigid mounting point for the rear hub and axle interface and is intended for hobby-grade model maintenance and setup work.

Installation is typically straightforward: remove the rear wheel and hub assembly, inspect the existing ball bearings and link pins, swap the original knuckle for the aluminum unit and reuse the stock mounting hardware where compatible. Confirm correct orientation and secure torque on the mounting screws, then verify toe and wheel alignment before final run. Do not assume additional modifications unless fitment checks indicate otherwise.

As a tuning component, a metal rear knuckle reduces flex compared with many stock plastic parts, helping to keep rear alignment consistent under load and during suspension travel. Use it with appropriate rear hubs, reliable ball bearings and properly set suspension geometry to realize predictable handling changes during setup sessions.