This RC-scale replacement spur is made for Axial Racing SCX10-based rigs and Wraith models. The SSCX085T 85-tooth, 48 pitch spur in Steel #45 meshes with a matching pinion to transfer motor torque into the drivetrain while matching common scale crawler gear standards.
Fit the spur on your transmission or gearbox following the chassis service procedure, set correct mesh with the motor pinion, and verify backlash and axial alignment. Use thin shims where required and avoid overloading bearing preload during installation. Treat the part as a direct drivetrain component for hobby-grade crawlers.
Tuning choices for spur and pinion change acceleration and top speed characteristics; altering tooth counts or fine-tuning mesh helps dial in trail speed versus torque. Regularly inspect teeth for wear and keep contact surfaces lightly lubricated to extend service life under RC conditions.
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