This is an RC-scale replacement motor pinion designed for Kyosho motorcycle models, supplied as a single 1pc item. The part matches the product title details: 11T tooth count in steel #45 material, intended as an aftermarket replacement pinion for hobby motorcycle motor drives.
Installation is straightforward for experienced hobby technicians: remove the motor from its mount, remove the old pinion, fit the new 11T steel pinion onto the motor shaft, secure according to your motor's set-screw or press-fit method, and verify gear mesh with the spur gear before finalizing the assembly. Always check for correct axial positioning and secure fastenings to avoid premature wear.
In tuning and maintenance, this steel #45 pinion serves as a durable option compared with softer materials; it is useful when adjusting gear ratios, testing mesh settings, or replacing a worn pinion during setup sessions. Inspect teeth for wear and confirm smooth rotation in the gearbox or motor mount during bench testing before track use.
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