Model number: TRA2421
Fine-tune your drivetrain with this Traxxas Pinion Gear. The 21-tooth, 48-pitch cut fits 3 mm motor shafts and includes a set screw for secure mounting — ideal for hobbyists dialing acceleration versus top speed.
Product Details
Fine-tune your drivetrain with this Traxxas Pinion Gear. The 21-tooth, 48-pitch cut fits 3 mm motor shafts and includes a set screw for secure mounting — ideal for hobbyists dialing acceleration versus top speed.
Gear Pitch: 48P
Tooth Count: 21T
Needed to Complete (not included):
- Hobby knife
- Glue
- Paint and finishing tools
NOTE: Photo of completed model is for illustrative purposes only. This is a model kit that requires assembly.
More info
The Traxxas Pinion Gear 21T 48P 3mm Bore is a simple, effective way to change gearing on your model. It fits standard 3 mm motor shafts and includes a set screw so you can swap ratios quickly to favor acceleration or higher top speed, depending on track or terrain.
Key Features
- 21-tooth (21T) design for a specific gear ratio step when tuning acceleration and top speed.
- 48-pitch tooth profile compatible with 48P spur gears commonly used in Traxxas drivetrains.
- 3 mm bore made to fit standard 3 mm motor shafts without modification.
- Includes set screw for secure attachment to the motor shaft and straightforward installation.
- Use this pinion to fine-tune vehicle performance for different running conditions and driving styles.
Technical Specifications
- Tooth count: 21T
- Pitch: 48P (48-pitch)
- Bore size: 3 mm
- Mounting: Set screw included
What's Included
- 21-tooth pinion gear (48-pitch), 3 mm bore
- Set screw for mounting
Why Choose This Pinion Gear
This Traxxas Pinion Gear is a straightforward, dependable part for anyone building or tuning a Traxxas model. Swap to this 21T gear when you want a different balance between punch off the line and top-end speed — a practical upgrade for racers and weekend bashers alike.
About the Brand
Customer reviews
Super Fast Gear
This pinion gear worked awesome on our 2wd Slash. It's super fast!
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Quick Ratio Change
Did a slight gear change from stock, gave it more punch w/o affecting top speed at the track. Went from 3.73 to 4.10 ratio, like real trucks.
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Perfect Fit and Quality
Used this on my rustler that kept stripping the spur gear, turns out I needed a traxxas spur. Got this and it solved the issue. Thanks!