NEO V1.0

NEO Motor Overview

The REV NEO Brushless Motor (REV-21-1650) is the first brushless motor designed to meet the unique demands of the FRC community. Offering an incredible power to weight ratio along with it's compact size it's designed to be a drop-in replacement for CIM-style motors as well as an easy install with mounting options.


  • Drop-in replacement for CIM-style motors

  • Shielded out-runner construction

  • Front and rear ball bearings

  • High-temperature neodymium magnets

  • High-flex silicone motor wires

  • Integrated motor sensor

    • 3-phase hall sensors

    • Motor temperature sensor


Empirical means based on observations or experience. Theoretical means based on theories and hypotheses. The two terms are often used in scientific practice to refer to data, methods, or probabilities. When we refer to empirical data, we refer to values that were produced via testing. When our documentation refers to theoretical values, those are values that are based on what the product can do, in theory, but have not directly been produced.

Empirical Motor Specifications

Empirical Motor Kv

473 Kv

Empirical Free Speed

5676 RPM

Empirical Free Running Current

1.8 A

Empirical Stall Current

105 A

Empirical Stall Torque

2.6 Nm

Empirical Peak Output Power

406 W

Theoretical Motor Specifications

Theoretical Stall Current

150 A

Theoretical Stall Torque

3.75 Nm

Theoretical Peak Output Power

540 W

Additional Specifications

Nominal Voltage

12 V

Typical Output Power at 40 A

380 W

Hall-Sensor Encoder Resolution

42 counts per rev.

Output Shaft Diameter

8mm (keyed)

Output Shaft Length

35mm (1.38in)

Output Pilot

19.05mm (0.75in)

Body Length

58.25mm (2.3in)

Body Diameter

60mm (2.36in)


0.938 lbs (0.425 kg)

Check out the NEO Motor Data Sheet for additional specifications. Also, please pay special attention to the NEO Motor Locked Rotor Testing and please make sure you have read and understand how to set the SPARK MAX Smart Current Limit.

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