Upgrade the suspension on your Ultima RB7.5 with Kyosho W5312-36 tuning springs. The 1.2x5.25x44mm measurements provide an accurate fit that helps stabilise handling and improve corner entry predictability for track sessions.
The Kyosho W5312-36 springs are produced to consistent tolerances to deliver steady spring rates and good longevity. That consistency lets you focus on damper and toe adjustments rather than chasing inconsistent spring behaviour.
These springs allow a wide range of suspension tweaks, from softer setups for low grip to firmer arrangements for fast tracks. The Kyosho W5312-36 set supports finer tuning of your Ultima RB7.5 without sacrificing durability.
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