Reedy Sonic 550 Brushless Motors

Sep 27, 2011 No Comments by

Reedy has expanded its new Sonic line to include 550 motors for 4WD short course trucks. These motors are stated to be designed specifically for the highly popular 4WD short course truck class.

Reedy states: Short Course 4WD is quickly becoming the one of the most popular competition classes in America. To satisfy the power demands that this class requires, Reedy developed the Sonic 550.

Designed specifically for the Short Course 4WD class and intended strictly for competition, the Sonic 550 features a lightweight case design with extra-large strategically placed vent holes to reduce operating temperatures. Lower temperatures result in less fade over the course of a race, longer run times, and increased motor life.

Sensored operation results in a smooth and controllable power band with no cogging. A high-torque rotor is supported by dual ball bearings for maximum power output and reliability, while adjustable timing allows for fine tuning for particular applications and tracks. Service is easy and economical thanks to a completely rebuildable design.

A choice of four ROAR-approved models means that there is a Sonic 550 motor to suit all tracks and conditions.


  • Lightweight design
  • Optimized air flow
  • Dual precision ball bearings
  • High-torque rotor
  • Adjustable timing
  • 5mm shaft
  • Completely rebuildable
  • Competition proven
  • 200mm sensor wire
  • Built to ROAR specs


Cells: 2S-3S LiPo
Diameter: 35.8mm
Length: 65.3mm
Shaft Diameter: 5.0mm
Weight: 243-253g

Sonic 550 4.0 Brushless

Sonic 550 4.5 Brushless

Sonic 550 5.0 Brushless

Sonic 550 5.5 Brushless

Gallery > Reedy Sonic 550 Brushless Motors


If you like this article, check out this additional article on Reedy products.

Short Course

About the author

Bringing you RC product news you can use on a daily basis as Car Action's Online News Editor. I have been heavily involved in RC since the late 90's, plus a diverse background that includes print and broadcast journalism, engineering, information technology, direct marketing, and even banking. Currently I enjoy racing 1/10 electric off-road, covering large race events, and spending time with my family when away from the track.
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