For model drivers needing predictable drivetrain behaviour, the Tamiya 51031 TGM-03 Hard Steel Pinion 17T (MJ3) offers a hard wearing tooth profile that maintains shape under repeated stress. The 17-tooth sizing is chosen to mesh well with common spur gears and reduce uneven wear.
The Tamiya 51031 pinion is machined to fit TGM-03 installations precisely, promoting stable engagement and minimal backlash. It is a good replacement for worn gears and a sensible upgrade for tuned setups.
Suited to short circuit racing and tuned road layouts, the hard steel pinion tolerates higher torque and repeated acceleration events. Installing this gear can lead to steadier throttle response and improved drivetrain confidence.
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