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 Motor Kv:
473 Kv
Typical Output Power at at 40 A:
380 W
Empirical Free Speed:
5676 RPM
Hall-Sensor Encoder Resolution:
42 counts per rev
Empirical Free Running Current:
1.8 A
Output Shaft Diameter:
8mm (2mm keyed)
Empirical Stall Current:
105 A
Output Shaft Length:
35 mm (1.38")
Empirical Stall Torque:
2.6 Nm
Output Pilot:
19.05 mm (0.75")
Empirical Peak Output Power:
406 W
Body Length:
58.25 mm (2.3")
Nominal Voltage:
12 V
Body Diameter:
60 mm (2.36")
Theoretical Stall Current:
150 A
0.938 lbs (0.425 kg)
Theoretical Stall Torque:
3.75 Nm
Mounting Holes:
#10-32 tapped
Theoretical Peak Output Power:
406 W
Mounting Hole Depth:
0.5" maximum
Shield Mounting Screws (pre-installed):
M2.5 x 5mm - Hex-drive (1.5mm) flat-head
Check out the NEO Motor Data Sheet for additional specifications and charted motor curves. 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

Wiring Connections

Connecting the NEO Brushless motors is fairly straightforward, follow the guide Wiring the Spark Max with the NEO Brushless Motor and don't forget to connect your encoder sensor wire, the motor will not spin without it!
CAUTION: Improperly wiring the connectors can cause severe motor damage and is not covered by the warranty, DO NOT connect the motor directly to the battery.
Last modified 6mo ago