This Arrowmax AM-MTX-T2717 2nd gear is supplied as an aftermarket 19-tooth replacement intended for use with MUGEN MTX-5 gearboxes. Machined from 7075 hard aluminum, it is specified as a durable option for scale racing drivetrains where consistent tooth geometry is required.
In the transmission this component functions as the intermediate (second) spur, so correct tooth engagement and steady mesh are essential for smooth power delivery. When installing, verify motor pinion alignment, confirm bearings are seated correctly, and adjust backlash to the MTX-5 recommended clearance.
For tuning, the 7075 hard aluminum construction provides improved wear performance under higher loads while holding precise machining tolerances for stable mesh. Apply light gear grease to contact faces, deburr if needed before fitment, and avoid excess preload on gearbox bearings to preserve service life.
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