Gear, 21T Pinion (1.0 Metric Pitch), Fits 5mm Shaft: 6493X
In Stock
Fine-tune the driving dynamics of your high-performance RC vehicle with the genuine Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore. Designed for optimal power transfer and durability when paired with steel spur gears, this replacement gear helps balance acceleration and top-end speed. Perfect for dialing in custom gearing performance across various terrain and track conditions.
The Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore is crafted to withstand the extreme torque generated by high-output brushless motors. Featuring a precise 1.0 metric pitch and engineered specifically to mesh cleanly with steel spur gears, this gear ensures smooth power delivery and reduced drivetrain wear. Included with a heavy-duty set screw, it installs securely onto 5 mm motor shafts found in large-scale models like the Traxxas XRT and Traxxas Funco Pro Scale Replica. Customizing your gear ratio with official Traxxas pinion gears allows drivers to optimize motor temperatures, maximize top speeds, or enhance punchy low-end acceleration depending on the environment.
What vehicles are compatible with the Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore?
The Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore is a direct fit replacement part for the Traxxas Funco Pro Scale Replica (109076-4), Traxxas XRT (78086-4), and Traxxas XRT Ultimate (78097-4).
Can I use the Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore with plastic spur gears?
No, this 1.0 Mod pinion gear is specifically intended for use with steel spur gears to handle high-torque applications without damaging the drive system.
Does the Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore include set screws?
Yes, the Traxxas 21-Tooth Pinion Gear includes the necessary set screw to lock the gear securely onto a 5 mm motor shaft.
How does installing the Traxxas 21-Tooth Pinion Gear (1.0 Mod) 5 mm Bore affect performance?
Changing pinion gear sizes changes your vehicle's overall gearing ratio; a 21-tooth gear helps tune the balance between punchy low-end acceleration and maximum top speed depending on your track or bash location.










