EMAX would like to introduce our 1606 motor. Quadcopter that utilize 3-4 inch props always struggle as the old motor choices were limited to 14xx series motors, or even heavy 22xx series motors. With the 1606 this bridges the gap providing a powerful motor in a small package to get the correct AUW for 3-4 inch quadcopters. This is also great for frames that are using more HD style components like the RunCam split to carry the extra payload. Can you say smooth controlled HD footage, now its possible with the RS1606.
RS1606 - 4000KV - 3300kv
Framework: 9N12P
Length: 28.1
Diameter: 20.8mm
No. of Cells: 3-4S
Max. Thrust: 4000-1027g (on 4s) 3300kv-875 (on 4s)
Prop shaft thread type: M5
Propeller: 3" - 4"
Weight: 15.8g (W/O silicone wire)
Wire Length: 85mm 24AWG
Motor mount bolt pattern 12mmx12mm M2 Thread
Bearing: 3x6x2.5
EMAX brushless motors are suitable for a wide range of hobby, engineering, and custom motion-control applications. They're ideal for high-speed propulsion, precision motion control, custom cooling fans, gimbals, 3D-printed mechanisms, and STEM or engineering prototypes.
If you're building lightweight, high-efficiency systems that need reliable power, smooth operation, and long service life, EMAX brushless motors are the go-to solution.
EMAX RS1606 Brushless Racing Motor — 3300KV / 4000KV
The EMAX RS1606 fills the critical gap between underpowered 14xx micro motors and oversized 22xx racing motors for 3–4 inch builds. With a 1606 stator delivering up to 1027g of thrust at 4000KV on 4S, it gives 3–4 inch quads the power-to-weight ratio they need to fly fast and feel locked in — without the excess weight that kills agility. It also handles HD payload builds well, making it a strong choice for pilots running RunCam Split or similar HD cameras on compact frames.
1606 stator — bridges the gap between 14xx micro and 22xx racing motors for 3–4 inch builds
3300KV or 4000KV options — 875g (3300KV) or 1027g (4000KV) max thrust on 4S
15.8g weight — powerful yet light enough for correct AUW on 3–4 inch frames
9N12P framework — smooth, efficient power delivery
M5 prop shaft — compatible with standard 3–4 inch propellers
12x12mm M2 mount pattern — standard bolt pattern for wide frame compatibility
Handles HD payload — enough thrust margin for RunCam Split and similar HD cameras
The right motor for pilots building serious 3–4 inch quads who need real power without the weight penalty of larger motors. Choose 3300KV for efficiency or 4000KV for maximum thrust on 3–4S LiPo.
