Original Traxxas spur gear with 48-pitch that fits on a wide variety of Traxxas radio controlled car models with 48-pitch pinion gears. Changing the spur gears allows the driver to fine-tune the accelleration and top speed of the car - a smaller spur gear will result in higher top speed while a larger spur gear provide more low-end torque and acceleration.
Traxxas 4-Tec 2.0,
Traxxas 4-Tec 3.0.
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