The Kyosho IG113-17 second gear is designed as a replacement component for specified GT gearbox assemblies. Featuring a 17 tooth profile, it is intended to restore or retain the original intermediate gear ratio when performing service or setup changes.
To fit this gear, remove the gearbox cover and note gear positions. Compare spline and tooth count to your original part, swap the second gear, and check rotational freedom and mesh. Reinstall retaining hardware and any circlips, then verify clearance with the motor pinion before completing the rebuild.
From a tuning standpoint, the IG113-17 affects mid-range gearing characteristics. When paired with appropriate pinion and spur choices it preserves predictable acceleration and drivetrain behavior; if bearings are worn or tooth counts are mismatched, expect increased noise and earlier wear.
Use this part for like-for-like gearbox repairs or when you need to return gearing to factory geometry after aggressive running. Always confirm compatibility with your chassis manual before fitting.
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