New! Reedy 550-SL4 Sensorless Brushless Motor

Tuesday, Sep 19, 2017 at 12:00am UTC

Reedy's new 550-SL4 is the perfect upgrade for your 1:10 4WD RTR! Due to its sensorless 4-pole configuration, the 550-SL4 operates powerfully, efficiently, and reliably in a variety of vehicles and applications.

The 3500kV rating provides plenty of speed with 2S LiPo batteries. But install a 3S LiPo battery for insane speeds that are barely controllable! A high-strength rotor provides plenty of torque and resists overheating better than 2-pole alternatives.

Flexible silicone wires ease wire routing in tight spaces and work in conjunction with 3.5mm bullet connectors to reduce power-robbing resistance and heat. Triple insulated windings, a hardened 5mm steel shaft, and oversized ball bearings enhance reliability to keep you out of the pits and on the track.


  • Powerful 4-pole Sensorless design
  • Oversized precision ball bearings
  • High-strength rotor
  • Hardened steel shaft
  • Triple insulated windings
  • Flexible silicone wires
  • Low-resistance connectors


Cells 2-3 LiPo, 4-9 NiMH
kV rating 3500
Applications 1:10 4WD buggy, truck, SC
Dimensions 52mm x 36mm
Shaft Diameter 5.0mm
Weight 222g
Power Wires 12-gauge silicone
Connectors 3.5mm

Reedy 550-SL4 Sensorless Brushless Motor
UPC: 784695 009066
Available Now