The Kyosho W5312-04 shock piston is intended for Ultima RB7.5 owners who want to optimise suspension behaviour. Built with accuracy, it delivers repeatable damping so the car reacts predictably across runs.
The piston uses a DC13 diameter and a 2.45-280 thickness to give controlled oil flow and consistent damping curves. Those specs help you match the piston to track surface and tyre choice.
Made for the Kyosho Ultima RB7.5, the W5312-04 drops into the stock shock assembly and requires no custom machining. Quick installation gets you back on the track faster.
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