The Kyosho MBW012S Setting Spring Set (Short) is a short-length spring kit made for Mini-Z MB-010 style shocks, supplied in multiple colour-coded rates so builders can fine-tune handling without swapping shock bodies.
This set follows the common Mini-Z short spring profile and offers a progressive range of stiffness via colour codes: Purple (super soft), Green (soft), Silver (medium), Gold (hard). The kit commonly ships with the super soft spring preinstalled.
Installation is simple: remove the shock cap and spring retainer, slide the chosen short spring onto the shock shaft, then reassemble. Because short springs affect static ride height and initial preload compared with full-length springs, recheck rebound and droop after changing springs.
For on-track tuning, start with the softer colours to add traction on low-grip sections and move to firmer colours to reduce body roll on faster parts of the circuit. Make single-step changes and run consistent laps to assess how each rate alters balance.
As an OEM Kyosho spare, MBW012S is intended for Mini-Z scale suspension adjustments and is a model-only component for hobby and track use.
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