This is an RC-scale aluminum front upright (knuckle arm) designed for use with TAMIYA TT01E and TT01ED chassis. The part is intended as a direct replacement or hop-up that keeps steering geometry consistent while using a machined metal component instead of stock plastic pieces.
Intended role: replace worn plastic uprights for improved durability, provide a stable mounting point for steering links and allow finer tuning of toe and steering response during setup. Installation typically uses the original steering link pins and hardware, and requires only standard wheel removal and reassembly steps on the TT01E/TT01ED platform.
Compatibility is explicitly TT01E and TT01ED chassis only; do not assume fitment on other TT-01 variants or unrelated models without verification. The part serves as a straightforward upgrade for racers and hobbyists focused on predictable steering feedback and longer service life for front suspension connection points.