This Yokomo YOKYX-40SG shock spring is an R/C-scale replacement part intended for pitching damp applications on radio-controlled models. The component has a gold finish and is designed to serve as a dedicated pitching damper spring that supports suspension tuning.
Fitment notes focus on practical installation: the spring is a direct replacement for springs used in pitching damp assemblies on R/C models that accept standard shock springs, and is intended to alter pitching response and help fine-tune front-to-rear weight transfer. When fitting, check spring orientation and preload clearance in the damper assembly, then compare handling against your baseline to decide whether a firmer or softer spring better meets your handling goals.
Maintenance and inspection are straightforward: check free length and straightness before use, confirm clean seating on shock cups and retainers, and verify the spring does not bind on the shock shaft throughout full travel. These checks help keep pitching damper response predictable during track or practice sessions.
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