This is an RC-scale rear shock spring designed for the big bore X-shock Ver.2 rear assembly used on B-MAX2 series kits. The part is described as S. blue in the product name and is intended as a direct replacement spring for the rear X-shock setup.
The spring's role is purely within the suspension system of the model: it provides the preload and restoring force for the rear big bore damper assembly and is used when replacing a worn spring or when adjusting rear suspension response during setup. It is not a complete damper and must be used with the compatible X-shock Ver.2 piston, shaft, and outer body.
Installation is straightforward for users familiar with off-road shock servicing: remove the rear X-shock from the car, disassemble the shock cap and spring retainer, swap the spring onto the shock body, and rebuild with the existing shock internals and appropriate preload. Check for correct seating on the spring retainer and ensure the shock shaft moves freely before reinstalling.
Tuning notes: use this spring to adjust rear ride height and initial response within the range supported by your existing X-shock Ver.2 hardware, and confirm compatibility with your shock collars and retainers. Do not attempt to force fit the spring onto incompatible shock assemblies.
Compatibility:
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