This blue aluminum front arm bulk is an RC-scale replacement compatible with TAMIYA CW-01 based kits including The Hornet and Grasshopper. It replaces the plastic front arm bulk to provide a stiffer mounting point for the front suspension while offering a corrosion-resistant finish.
Compatibility is restricted to the CW-01 platform models listed above. Installation replaces the original plastic bulk using the vehicle's existing fasteners; inspect screw engagement and full suspension travel after fitting to prevent binding. The component is supplied as a single piece intended to work with original hardware and surrounding suspension parts.
In tuning, the alloy bulk reduces mounting flex which can affect steering feedback and alignment stability. Introduce the upgrade as part of a systematic setup process and test handling changes before finalising adjustments.