The Arrowmax AM-NT1-338517 1st.GEAR 17T is a precision first gear produced for the XRAY NT1 platform, machined from 7075-T6 aluminium and hard-coated to improve wear resistance. The part is intended for RC-scale use and matches the NT1 spur gear mesh profile for reliable engagement.
This 17-tooth option is part of a tooth-range family covering 16T through 23T, allowing straightforward tuning of acceleration versus top-end characteristics by changing the pinion size. The hard-coated 7075 body keeps mass low while offering improved surface durability compared with standard aluminium alternatives.
Installation is standard for NT1 clutch pinions: ensure correct gear mesh and axial alignment with the spur gear, check for burrs or damage before fitment, and verify smooth rotation under load. Tooth selection should be considered alongside motor and ESC setup to achieve the desired lap-time balance rather than as a standalone performance fix.
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