This is an orginal Flite part.
Arrma Pinion Gear 24T MOD 0.5 CNC 3.2mm Bore ARA-2175
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
X-Ray 16T PINION GEAR XR355716
TEAM ASSOCIATED FT PINION GEAR 15T MOD 1, 5mm SHAFT - ALUMINIUM AS89597