The Kyosho IF410-46C is a 46-tooth spur gear intended as a replacement for the INFERNO MP9 and MP10 family. It is specified to restore correct tooth engagement and maintain the designed drivetrain layout.
This component is compatible with INFERNO MP9/MP10 platforms that require a 46T spur in their stock configuration. When replacing the spur, check pinion mesh, centre differential clearance and bearing condition to maintain smooth operation and even wear across the gear teeth.
When tuning, the 46T spur keeps the factory gear ratio if you use different pinion sizes, allowing controlled adjustments to acceleration and top speed without changing gearbox spacing or chassis mounts. Ensure shims are correct and backlash is within the chassis maker's recommended tolerance.
Fitment advice: remove any machining burrs from contact surfaces, secure the motor pinion correctly, and inspect nearby bearings and gearbox seals while the spur is accessible. Regular inspection prevents premature wear and keeps drivetrain losses low.
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