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RCX H1707 3200KV Micro Outrunner Brushless Motor
RCX H1707 3200KV Micro Outrunner Brushless Motor
Click to enlarge
Manufacturer: RCXHOBBY.COM
Model: RCX07-439
Weight: 30g
Common: CNC7075, N50SH Upgraded!
Remark: Insane Power for 3-4 Inch Props
Availability: Time is unforeseen
Price: USD11.99
Available Options:

More Details   |   Video Proof of Working
This is a great motor for those who want fast speed but light weight. The CNC Material of H1707 Motor is Hard 7075 together with N50SH high efficiency magnets. It gives your Quad super power to fly.

** N52SH raw material is not as stable as N50SH at the moment, so we rather to use N50SH.

This 3200KV is suitable for
  • GF 3030BN + 5S Li-Po
  • GF 3545BN + 4S Li-Po
  • GF 4045 + 3S Li-Po
  • GF 5030 + 3S Li-Po

It assembled with Imported NMB Bearing and Copper Wire to maintain the quality. The motor has been balanced by Motion Balancing Machine so you will see the colored balancing mud in the motor. There are lots of brands who claimed their motors are balanced but in fact it is only static balanced (this means just to filter the highly imbalanced CNC out), its balancing quality is far away from real Dynamic Balancing. If you do not see the balancing mud inside almost all motors, that means their "balanced" word is just a joke. Be Smart & Buy Smart!

Dynamic balancing is the most time consuming part when manufacturing a motor so factories don't like to balance the motors due to saving of labor work. RCX always cannot catch up the supply demand due to this reason (production quantity is limited by the balancing work). If a factory can supply heaps of motors to the market, do you think their motors are balanced well? If RCX does not need to balance the motor, the production would be much faster.

Quality Motor Best for 130-180mm frames

Neat copper wire winding 
This H1707 motor made with Imported Copper Wire, NMB Bearings, Kawasaki Japan 0.2mm Silicon Steel.

All RCX H1707 Motors Are Factory Balanced!!
Unlike most other brands who do not balance their motors (or just lie that the motor has been balanced). All of our H1707 motors have been balanced by Dynamic Balancing Machine. It takes time so the production quantity (bottleneck) is limited. You will see the balancing mud in most of RCX H-Motors, it is the proof of *balanced*.

Standard Φ12 in M2 Mounting Screw Thread

Standard 5mm Prop Shaft with M5 CW Anti-Slip Locknut
This motor designed with standard Φ5mm Prop Mount together with Slip-Resistant Locknut so this can lock up the propeller pretty well.

AWG Soft Cable for Easy Soldering
This motor was soldered with long soft AWG cables for easy soldering and wiring. Shorten these cables if you do not need them that long, it will help on losing weight.

Motor Diagram
With M2*12 mounting holes, it will fit most micro frames in the market.

Thrust Test Table
This 3200KV Motor works great with GF3030BN Prop + 5S Li-Po, and GF3545BN/GF4045 Prop + 4S Li-Po.

Where can you get a such high quality motor for such a low price? We are losing money to sell this motor because we want to beat our competitors. We may adjust (raise) the price anytime so you are better to buy as many as you can to save money now.


  • Model: H1707
  • KV: 3200KV
  • Weight: Approx. 18.8g (net weight included long AWG cables)
    • you can lower the weight if you shorten the long AWG cables.
  • AWG Cable: 15cm
  • Prop Shaft Diameter: 5mm (CW)
  • Stator Diameter: 17mm
  • Stator Length: 7mm
  • Shaft Diameter: 2mm
  • Configuration: 12N14P
  • Motor Dimensions: Φ00*00mm
  • ldle Current: 0.00A @ 10V
  • Internal Resistance: 0.00Ω
  • Suitable ESC: 12 - 20A (depends on the propeller and battery you use)
    • HobbyWing's XRotor works pretty well with H1707 motor so it is recommended especially the XRotor 15A is small in size.
    • Since SimonK and BLHeli might shutter during high RPM on small props (eg. 3030). So if you plan to drive the motor hard, please consider to get XRotor 15-20A because XRotor was tested at high RPM without any sync issue.
  • Suitable Battery: 2-5S Li-Po (refer to thrust test table and videos)

Maintenance Parts
Bearing and motor shaft are common consumable parts of a motor. You are recommended to replace a new one from time to time after a period of flight time. Replacement of bearings and motor shaft could sometime fix mirror issues. It is better for you to keep some for spare.

Package Included
  • 1 x RCX H1707 3200KV Micro Outrunner Brushless Motor
  • 1 x Hex Locknuts M5 (Slip-Resistant) - CW
  • 1 x Set of Screw

Notice: Motor is not exchangeable/refundable if the motor cables are cut (shorten) or motor has apparently damage. So if you want to test the motors to make sure the motors are working properly, we suggest you to use "Terminal Blocks" for connection between motor and ESC for testing. Thank you for your kind attention.

Notice: This question "my new motor is hard to turn by finger, it is not smooth so it is defective!" has been asked many times. Please click here for the answer.


More Images
RCX H1707 3200KV Micro Outrunner Brushless Motor
Click to enlarge
RCX H1707 3200KV Micro Outrunner Brushless Motor
Click to enlarge
This product was added to our catalog on Monday 18 February, 2019.
** product specification may vary from time to time and photo(s) is for illustration only
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