This is an orginal Flite part.
Tamiya 54771 06 Module Hard Coated Aluminum Pinion Gear (24T)
Arrma Pinion Gear 20T 0.5 MOD CNC 2.3mm Bore ARA311206
Arrma Pinion Gear 21T 0.5 MOD CNC 2.3mm Bore ARA311207
Arrma Pinion Gear 15T MOD 0.5 CNC 2.3mm Bore ARA-2630
Arrma Pinion Gear 25T MOD 0.5 CNC 3.2mm Bore ARA-2176
X-Ray 16T PINION GEAR XR355716