This is an RC-scale 206mm rear adjustable spring damper intended for HPI Baja platforms, produced by GPM as BJ208R. The component focuses on rear suspension tuning, offering a machined alloy housing and an externally adjustable spring preload and damping interface to influence ride height and rebound behavior on large-scale buggies.
As an aftermarket replacement or upgrade part, the damper serves as a direct mechanical element of the rear suspension system. It is designed so users can fine-tune spring preload and observe changes in traction and handling without modifying other chassis components. The description below stays technical and practical for hobbyists who adjust suspension setup trackside.
The damper is sold as an individual rear unit; installation typically requires standard shock mounting hardware and basic workshop tools. When tuning, use known shock oil viscosities and spring sets compatible with 206mm shock lengths to achieve predictable changes in compression and rebound characteristics.
This GPM BJ208R unit provides a straightforward, serviceable rear damper option for HPI Baja owners who need a 206mm alloy component for suspension setup and tuning work.
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