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This is a pinion gear with a 3.8:1 gear ratio for the S280 gearbox. It is used with the Great Planes Park Flyers.
Features: Replace worn pinion gear or change your gear ratio
Requires: One T-280 motor and installing pinion gear onto motor shaft
Outer Diameter: 6mm
Hole Diameter: 2mm
Note: The higher number of teeth on a pinion gear results in higher speed of your model. The fewer number of teeth gives more torque.
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