The Returner R4 2205 2700KV motor from BrotherHobby is a good option for light weight mini quads. In this review we will take a closer look at the motor and its features.
I was looking for some light weight motors for my ultralight 5″ racer, and the Returner R4 2205 motor appears to be a really good choice.
Where to get the R4 2205 motors: Banggood
- Weight: 25g with short wires, or 27g with 15cm wires
- Motor wires are 20awg
- EZO Bearing
- Titamium Shaft
If you are familiar with the ZMX V3 motors, the R4 motors have a very similar physical appearance and feel.
Further Reading: Check out my Motor Beginners Guide for Mini Quad.
The Returner R4 2205 2700KV motor comes with four 7mm motor bolts, and an aluminium prop locknut.
Build quality is excellent, there is no vertical play in the shaft and bell. The hollow motor shaft is made of titanium alloy.
The R4 2205 motor has an “naked bottom” design, the removed material saves weight and makes it easier to get dirt out. It uses an circ-clip instead of a screw to hold the shaft in place.
The curved magnets (not very obvious from the picture) make the air gap even tighter, and perhaps that’s why, I can feel slightly more resistance spinning the motor by hand compared to other motors I have.
It has a very clean single-stranded motor windings, can’t complain at all :)
My plan is to pair these motors with either lighter props such as 5040×3 to get good efficiency and higher top speed, this should be pretty sweet for open fields and endurance flights. For racing in tricky courses I will use some heavier props to get higher low end resolution and better acceleration, such as 5045×3, or even DAL T5051C,
I am testing these motors on my Fury 5X Lite build.