The GPM SMTG17T Steel Motor Gear 17T Set is manufactured to provide a durable replacement pinion for Tamiya brushless drivetrains. Constructed from #45 steel, the gear offers improved resistance to wear while maintaining consistent power transfer and accurate tooth contact under repeated use. It is compatible with a variety of brushless motor setups and specifies a tooth distance of 0.6MM and a middle hole diameter of 3.175MM to ensure correct alignment and dependable meshing performance.