This tough steel 21T MOD0.5 Pinion Gear provides a direct replacement for your kit item.
Features
Strong and durable steel for long-lasting performance in extreme RC conditions
Precision manufactured tooth profile for smooth operation
Precision manufactured set screw hole
For 2.3mm motor shaft
Includes
1 x 21T Mod 0.5 Pinion Gear
1 x M3 x 4mm Set Screw