Arrma Pinion Gear 31 Teeth Mod 1 made of high-quality steel is designed for superior performance in your RC car. This pinion gear features a unique D-shaped hole that securely fits the motor shaft, preventing drive loss and brake failure even if the set screw becomes loose.
Ideal for fine-tuning gear ratios, this durable steel Mod 1 pinion gear is available in various tooth counts to optimize your vehicle's speed and torque. The precision-engineered wide tooth profile ensures smooth and efficient operation under the most demanding RC conditions.
High-strength steel construction for enhanced durability
Wide tooth profile for smooth meshing with spur gears
D-shaped motor shaft hole to maintain drive integrity
Compatible with 5mm motor shafts
Precision threaded set-screw hole for secure mounting
Includes E-clip for extra retention on the motor shaft