Serious hobbyists upgrading an ST-RR Evo chassis can rely on the Kyosho IS117 43T Hard Bevel Gear to maintain consistent drivetrain operation. It is suited to drivers who demand predictable mechanical response.
The Kyosho IS117 bevel gear benefits from a hardened finish and accurate tooth cutting, producing smooth meshing and reliable torque transfer via its 43-tooth profile. This supports steady performance lap after lap.
Intended for the ST-RR Evo, this bevel gear integrates cleanly with the existing drivetrain layout and can be installed without complex modifications. It is an effective service part for routine maintenance or selective upgrades.
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