This is an RC-scale axle spring set intended for TAMIYA CW-01 based models such as the Lunch Box and Midnight Pumpkin. The parts are sold as replacement axle springs to restore or adjust axle preload and ride height on scale Tamiya models that use the CW-01 axle assembly.
Fit and compatibility: use these springs where CW-01 axle assemblies specify replaceable springs. They are intended for hobby-grade model maintenance and tuning, not for full-size vehicles.
Installation and tuning role: swap the springs into the axle housing following standard axle disassembly procedures, check preload and articulation, then fine-tune ride height and axle response to match terrain or driving preference. Adjustments to spring seating and preload change how the axle transfers weight and how the model articulates over obstacles.
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