Mugen MTX Performance 17T Pinion 7075 Hard Aluminium by Arrowmax AM-MTX4-T0725  [AM-MTX4-T0725]

Arrowmax AM-MTX4-T0725 Pinion Gear - 17T (1ST) (7075 HARD)
Price:
NZD$10.73
Brand:
Arrowmax
Model:
AM-MTX4-T0725
Condition:
Brand New
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7075 17-Tooth Pinion for Precision Tuning

This 17T motor pinion is intended for use on Mugen MTX chassis when a 17-tooth option is required for gear ratio adjustments. Manufactured from 7075 hard aluminium, it balances a lightweight feel with durable tooth edges for regular setup changes.

Installation notes: press the pinion onto the motor shaft, align mesh with the spur gear and secure the set screw(s). Perform an initial slow run to confirm smooth rotation and then re-check tightness after a brief break-in.

Tuning role: use this 17T pinion to incrementally alter acceleration and top speed by small gear ratio changes; it is an upgrade focused on the motor drive rather than a full drivetrain rebuild.

Yes, swapping pinions is a common tuning step. Ensure the 17T tooth count works with your existing spur and check motor shaft fit before installation.
Set correct mesh with a small gap under light pressure, avoid overtightening the motor mount, and inspect the pinion after high load runs to catch wear early.
7075 offers improved resistance to wear during repeated mesh adjustments, but check teeth and replace if signs of wear or burrs appear.

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