The Kyosho OTW130 spring adjusters provide a simple way to control preload on 13mm springs. Supplied in black as a two-piece set, they let you tweak ride height and spring tension without full shock removal.
Designed for the TURBO OPTIMA and other cars with matching 13mm hardware, these adjusters make small handling changes straightforward and repeatable.
Work on a flat surface, make incremental adjustments and test the car between changes to avoid overshooting your target setup.
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