Tamiya TA01/TA02/DF01/FF01 Rear Knuckle Arm Upgrade - Aluminum JR-TA109-LB by Jazrider  [JR-TA109-LB]

Rear knuckle arm for Tamiya four-wheel platforms

This aluminum rear knuckle arm is a direct-fit RC-scale replacement for Tamiya TA01, TA02, DF01 and FF01 chassis where the rear steering or hub assembly requires a machined aluminum part. The light blue anodized finish gives a clear visual ID while the aluminum increases rigidity over stock plastic, helping the steering geometry stay consistent under load.

Installation follows common Tamiya maintenance steps: remove the original rear knuckle, inspect the hub carrier mounting faces and fasteners, then install the aluminum arm using the existing hardware. Typical hex drivers used on Tamiya models are sufficient; check thread engagement and torque to avoid over-stressing nearby plastic components.

For setup the aluminum arm reduces flex in the rear steering area, producing a crisper response and a more predictable feel during track sessions or club practice. After fitting, verify wheel bearing clearance and alignment to confirm the handling meets expectations.