Pinion Gear 21T 0.5 MOD CNC 2.3mm Bore ARRMA Pinion Gear 21T 0., 5 MOD CNC 3., 2mm Bore, ARA-2030 This tough steel 21T MOD0., 5 Pinion Gear provides a direct replacement for your kit item. Includes 1 x 21T Mod 0., 5 Pinion Gear 1 x M3 x 4mm Set Screw Features Strong and durable steel for long-lasting performance in extreme RC conditions This tough steel 21T MOD0.5 Pinion Gear provides a direct replacement for your kit item. Includes 1 x 21T Mod 0.5 Pinion Gear 1 x M3 x 4mm Set Screw This pinion gear is available in a wide range of tooth count sizes, offering tuning flexibility to optimize acceleration and top speed. Arrma 311074 12T 0.8 Mod 1/8" Bore CNC Steel Pinion Gear - Small This is an Arrma CNC Steel Mod 0.8 Pinion Gear intended for use with the Infraction 4WD MEGA Truck. Arrma Pinion Gear 21T MOD 0.5 CNC 3.2mm Bore (Z-ARA-2030) ; Brand: ARRMA RC Cars ; Product Code: Z-ARA-2030 ; Availability: Available to Order...