5-inch FPV racing and freestyle motor
GEPRC SPEEDX2 2407E
A 39 g 2407 for 5 to 6-inch racing quads on 6S, which GEPRC rates at 40.88 A and 1011 W peak; it publishes no bench table for it.
- 5 to 6-inch racing and freestyle
- 6S
- 5 to 6-inch props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 2407 motor drawn from GEPRC’s published sizes, not its exact design. No-load speed is KV × 22.2 V, a nominal pack for this version. GEPRC publishes no bench data for it.
- Weight
- 39 g
- with the leads
from $16.99a motor at GEPRC
A set of four: $67.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What you get for $16.99
Smaller air gap
GEPRC narrowed the gap between rotor and stator, which it says makes the motor respond faster.
Source: GEPRC product page
7075 bell, open top
A CNC-machined 7075 aluminium bell with large cut-outs that GEPRC says help it shed heat.
Source: GEPRC product page
About 1 kW on 6S
GEPRC rates the peak current at 40.88 A and the max power at 1011 W on 6S.
Source: GEPRC spec image
What to pair it with
Our reading of GEPRC’s numbers, so your build matches what the motor was tested with.
- ESC
- GEPRC lists a 60 A ESC for 6S. Its spec image gives a 40.88 A peak current and its page text 49 A. (GEPRC product page, GEPRC spec image)
- Props
- GEPRC lists 5 to 6-inch props. (GEPRC product page, GEPRC spec image)
- Battery
- 6S (25.2 V). (GEPRC spec image)
- Frame
- A 16 × 16 mm mounting pattern; GEPRC says it suits 5 to 6-inch racing quads. (GEPRC product page, GEPRC spec image)
Where to buy
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 1,750 rpm/V | GEPRC product page, GEPRC spec image |
| Stator | 24 × 7 mm (2407) (from the size in GEPRC’s name) | GEPRC product page |
| Configuration | 12N14P (12 stator slots, 14 magnet poles) | GEPRC product page, GEPRC spec image |
| Battery | 6S LiPo (25.2 V) | GEPRC product page, GEPRC spec image |
| Weight | 39 g (with the leads) | GEPRC product page, GEPRC spec image |
| Dimensions | φ34 × 30 mm (as GEPRC gives it, with no drawing; it doesn’t match the proportions of GEPRC’s own photos, so the 3D model doesn’t use it) | GEPRC product page, GEPRC spec image |
| Shaft | 5 mm, 13.5 mm long (GEPRC’s “shaft length”) | GEPRC product page, GEPRC spec image |
| Mounting | 16 × 16 mm (GEPRC gives no screw size) | GEPRC product page, GEPRC spec image |
| Bell | 7075 aluminium, CNC-machined; glossy black with large cut-outs | GEPRC product page |
| Magnets | N52H | GEPRC product page, GEPRC spec image |
| Bearings | NMB/NSK (as GEPRC gives it) | GEPRC product page, GEPRC spec image |
| Winding | Single-strand copper | GEPRC product page, GEPRC spec image |
| Internal resistance | 38 mΩ (GEPRC gives it as interphase resistance) | GEPRC product page, GEPRC spec image |
| Peak current | 40.88 A (from GEPRC’s spec image; the page text says 49 A) | GEPRC spec image |
| Max power | 1,011 W (from GEPRC’s spec image; the page text says 972.7 W) | GEPRC spec image |
| Leads | 20 AWG, 150 mm | GEPRC product page, GEPRC spec image |
| In the box | 4 screws and a prop nut (sizes not given) | GEPRC product list |
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. CNC-machined 7075 aluminium, glossy black with large cut-outs, over N52H magnets. (GEPRC product page)
- Stator. 12N14P, wound with single-strand copper wire. (GEPRC product page, GEPRC spec image)
- Bearings. NMB/NSK bearings. (GEPRC product page, GEPRC spec image)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1750KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.
| Battery | Volts | No-load rpm (KV × V) | Electrical frequency | ESC steps per second |
|---|---|---|---|---|
| 4S nominal | 14.8 | 25,900 | 3,022 Hz | 18,130 |
| 4S full | 16.8 | 29,400 | 3,430 Hz | 20,580 |
| 6S nominal | 22.2 | 38,850 | 4,533 Hz | 27,195 |
| 6S full | 25.2 | 44,100 | 5,145 Hz | 30,870 |
A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.
About the 3D model
A generic outrunner drawn from GEPRC’s published sizes: the 24 × 7 mm stator, 5 mm shaft, 16 mm mounting circle and 12 teeth and 14 magnets. Anything GEPRC doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.
Sources
- GEPRC: SPEEDX2 2407E 1750KV Motor (product page, with features and the spec list). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 2407E specifications (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 2407E product list (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 2407E product photo (first gallery image). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 2407E top of the bell (gallery image). Retrieved Oct 19, 2026.
