The Yokomo B10-S3SA short shock spring cup is a compact upgrade for tuners who demand accurate preload adjustments on BD9/10 chassis. It is manufactured to provide repeatable results for competitive driving.
Engineered for BD9/10 models, the Yokomo B10-S3SA helps maintain correct spring alignment and improves control during lateral weight shifts. That stability is useful when refining corner entry and mid-corner balance.
This spring cup fits MDR-020, SDR-020, and MDR-020BL chassis variants and works with standard shock assemblies. Simple to install, it allows quick swaps during practice sessions or events.
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