The MJ1557T kit pairs an aluminium spur gear adapter with a 57-tooth steel spur for scale RC drivetrains, matching the Axial models specified in the listing. The design separates the adapter mounting from the gear so the steel spur handles torque while the aluminium adapter maintains alignment with the gearbox output.
Provided as a model-scale replacement or upgrade, this kit emphasises reliable fit and fastener retention rather than altering wheel or motor output. Correct installation helps preserve concentric mesh and reduces lateral play between the spur and the transmission interface.
Ideal when you need a direct replacement aluminium spur adapter with a 57T steel spur for Axial SMT10/SCX10 II variants; always double-check compatibility before installation.
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