HobbyStar 2820 (3542) Brushless Outrunner Motor

SKU: 377-15-CNF

Availability: In stock


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HobbyStar brushless outrunner motors are built using high-quality components and precision balanced to ensure a smooth, reliable and powerful motor for your aircraft. Motor shafts can be reversed on all motors, and a hardware kit with mounting plate, prop adapter and hardware kit are included with all motors.



  • 14-pole, 12-slot high-torque design
  • CNC machined 6061 T6 billet aluminum housing
  • High-purity copper windings for maximum efficiency
  • High RPM ABEC 5 oversized bearings
  • Precision balanced rotor 
  • Super-thin stator laminations (0.2mm)
  • Flexible silicone leads with pre-installed gold-plated connectors
Model Watts Cells Max Amps Rotor Poles IO Resistance KV (RPM/Volt) Motor Size Stator Size Weight Propeller Shaft Diameter (mm) Connectors
2820-06 750 2-4S 55A 14 2.0A 0.039 1000 35x42mm 2820 132g 10*6/12*6.5/13*8 5mm 3.5mm
2820-05 850 2-4S 65A 14 2.1A 0.026 1250 35x42mm 2820 132g 9*5/10*4 5mm 3.5mm
2820-04 1050 2-4S 78A 14 2.3A 0.021 1450 35x42mm 2820 132g 12*5/11*7 5mm 3.5mm


Customer Reviews (2)

Great motorReview by Jeff
Got the 1450kv in my durafly t28 centennial pnp with avian 80a smart esc on 4s. IT SCREAMS!!! Fun motor! On accel it pulls almost 100a. The smart 45a was getting plenty warm in my case had to switch bigger esc. (Posted on 4/4/2021)
Great value for the moneyReview by jeremy
I put this motor in a multiplex heron using a 12x6 folding prop pulls 37amps on a3s 2200 , nice quiet running motor plenty of power (Posted on 10/26/2017)

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Is the prop shaft capable of being slide to stick out the other end?
Yes, the shaft is reversible on this motor.
RCJuice answered on October 8, 2020