This aluminium front arm bulk is an RC-scale replacement part intended for Tamiya CW-01 platforms including The Hornet and Grasshopper. The component replaces the stock plastic front arm bulk, serving as a rigid mounting point within the front suspension assembly while keeping original geometry and mounting locations.
Functionally the part acts as a structural element in the front end, reducing flex at the steering and suspension pick-up points. That change in stiffness alters steering response and suspension behavior, so expect a different feel compared with the factory plastic piece and verify travel and clearance after fitting.
Installation is straightforward for builders familiar with CW-01 service: remove the existing front arm bulk from the front bulkhead, transfer any necessary pins or retainers and fit the aluminium unit to the same mounting points. After installation, check steering linkage, wheel tie-rod alignment, and full suspension travel to confirm there is no binding.
When tuning, use this part to influence front-end stiffness as part of a broader setup change. Because it affects structural stiffness rather than suspension spring rates, pair it with chassis checks such as toe, camber and ride height to achieve the desired handling balance.
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