5-inch FPV freestyle motor
Flywoo ROBO RB 2207 SE
A 32 g 2207 for 5-inch quads; on Flywoo's bench the 1750KV pulls 1,655 g on a Gemfan 6045 at 24 V, and the 2450KV 1,462 g on an HQ 5.1 × 3.1 three-blade at 16 V.
- 5-inch quads
- 2S–6S; Flywoo tested the 1750KV at 24 V and the 2450KV at 16 V
- 5-inch props and the Gemfan 6045
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 2207 motor drawn from Flywoo’s published sizes, not its exact design. Thrust, current and power are Flywoo’s bench figures for the GF6045*2 prop at 24 V, read straight across between its throttle steps. Its data starts at 50% throttle.
- Max thrust
- 1,655 g
- GF6045*2 prop, 24 V
- Weight
- 32 g
- with 3 cm of wire, as Flywoo gives it, though it lists the leads as 160 mm
- Peak current
- 21.0 A
- full throttle
- Max power
- 504 W
- full throttle
Plain links: we earn nothing from them.
What it pulls
Flywoo’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the GF6045*2: 893 g of thrust, 8.1 A, 195 W, 5.44 g per watt.
On your quad
10.2 : 1
Thrust to weight at full throttle: four motors pull 6,620 g with the GF6045*2 at 24 V.
At 60% throttle they pull 3,574 g, 5.5 times the quad’s weight.
All-up weight is the quad ready to fly, with its battery and camera. The thrust is the maker’s static bench figure; in the air it is lower.
What you get
32 g
32 g on a 22 × 7 mm stator, with an M5 shaft and a 16 × 16 mm mount.
Source: Flywoo product page
1750KV on the bench
1,655 g at 21 A on a Gemfan 6045 two-blade at 24 V, and 1,459 g at 17.5 A on an HQ 5.1 × 3.1 three-blade.
Source: Flywoo bench data
2450KV on the bench
1,462 g at 26.6 A on the HQ 5.1 × 3.1 three-blade at 16 V, and 1,434 g at 29.7 A on the HQ EthiX S5.
Source: Flywoo bench data
What to pair it with
Our reading of Flywoo’s numbers, so your build matches what the motor was tested with.
- ESC
- On Flywoo's bench the 1750KV draws up to 21 A at 24 V and the 2450KV up to 32 A at 16 V, both on a Gemfan 6045 two-blade. (Flywoo bench data)
- Props
- Flywoo tested 5-inch props (HQ EthiX S3, S4 and S5, DALProp Fold F5 and 5147.5, HQ 5.1 × 3.1 three-blade) and a Gemfan 6045 two-blade. (Flywoo bench data)
- Battery
- 2S–6S; Flywoo tested the 1750KV at 24 V and the 2450KV at 16 V. (Flywoo product page, Flywoo bench data)
- Frame
- 16 × 16 mm mounting; four M3 screws and an M5 prop nut come in the box. (Flywoo product page)
Where to buy
- Flywoothe maker's store; 1 motor, same price for each KV; both KVs were sold out$16.99seen Oct 19, 2026Visit
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 (also 2450KV) | Flywoo product page |
| Stator | 22 × 7 mm (2207) (Flywoo's box list calls it "ROBO Motor 22.5-6.5") | Flywoo product page |
| Battery | 2S–6S LiPo | Flywoo product page |
| Weight | 32 g (with 3 cm of wire, as Flywoo gives it, though it lists the leads as 160 mm) | Flywoo product page |
| Shaft | M5 | Flywoo product page |
| Mounting | 16 × 16 mm, M3 screws (M3 from the four mounting screws in the box) | Flywoo product page |
| Peak current | 21 A (100% throttle, Gemfan 6045 two-blade, 24 V; the highest current on Flywoo's 1750KV bench. The 2450KV drew 32 A on the same prop at 16 V.) | Flywoo bench data |
| Max power | 504 W (the same run; 512 W for the 2450KV) | Flywoo bench data |
| Leads | 160 mm | Flywoo product page |
| In the box | 1 motor, 1 M5 prop nut, 4 M3 mounting screws | Flywoo product page |
Bench data
Redrawn from Flywoo’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.
1750KV on 2S–6S, 24 V7 props
| Prop | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|
| GF6045*2 (Gemfan 6045, 2-blade)motor at 75 °C | 50% | 4.9 | 703 | 117.6 | 5.978 |
| 100% | 21 | 1,655 | 504 | 3.284 | |
| HQ 5.1*3.1*3 (HQProp 5.1 × 3.1, 3-blade)motor at 67 °C | 50% | 4 | 555 | 96 | 5.781 |
| 100% | 17.5 | 1,459 | 420 | 3.474 | |
| HQ EthiX S5motor at 70 °C | 50% | 4.9 | 606 | 117.6 | 5.153 |
| 100% | 19.5 | 1,431 | 468 | 3.058 | |
| DAL5147.5 (DALProp 5147.5)motor at 65 °C | 50% | 3.9 | 559 | 93.6 | 5.972 |
| 100% | 16.5 | 1,423 | 396 | 3.593 | |
| HQ EthiX S4motor at 66 °C | 50% | 4.2 | 543 | 100.8 | 5.387 |
| 100% | 16.7 | 1,380 | 400.8 | 3.443 | |
| HQ EthiX S3motor at 64 °C | 50% | 3.7 | 496 | 88.8 | 5.586 |
| 100% | 15.5 | 1,340 | 372 | 3.602 | |
| DAL Fold F5 (DALProp Fold F5)motor at 65 °C | 50% | 3.6 | 488 | 86.4 | 5.648 |
| 100% | 16.6 | 1,291 | 398.4 | 3.24 |
Source: Flywoo bench data
2450KV on 2S–6S, 16 V6 props
| Prop | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|
| HQ 5.1*3.1*3 (HQProp 5.1 × 3.1, 3-blade)motor at 69 °C | 50% | 6 | 554 | 96 | 5.771 |
| 100% | 26.6 | 1,462 | 425.6 | 3.435 | |
| HQ EthiX S5motor at 72 °C | 50% | 7.5 | 604 | 120 | 5.033 |
| 100% | 29.7 | 1,434 | 475.2 | 3.018 | |
| DAL5147.5 (DALProp 5147.5)motor at 67 °C | 50% | 5.8 | 560 | 92.8 | 6.034 |
| 100% | 25 | 1,417 | 400 | 3.543 | |
| HQ EthiX S4motor at 68 °C | 50% | 6.5 | 542 | 104 | 5.212 |
| 100% | 26.1 | 1,375 | 417.6 | 3.293 | |
| HQ EthiX S3motor at 66 °C | 50% | 5.8 | 494 | 92.8 | 5.323 |
| 100% | 24.2 | 1,331 | 387.2 | 3.438 | |
| DAL Fold F5 (DALProp Fold F5)motor at 67 °C | 50% | 5.6 | 487 | 89.6 | 5.435 |
| 100% | 25.2 | 1,288 | 403.2 | 3.194 |
Source: Flywoo bench data
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Shaft. M5 thread. (Flywoo product page)
- Leads. 160 mm. (Flywoo product page)
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 Flywoo’s published sizes: the 22 × 7 mm stator, 5 mm shaft and 16 mm mounting circle. Anything Flywoo 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
- Flywoo: ROBO Motor RB 2207 SE 1750KV / 2450KV (product page; both KVs listed as sold out on 2026-10-19). Its box list names the motor "ROBO Motor 22.5-6.5", against the spec list's 22 mm × 7 mm stator.. Retrieved Oct 19, 2026.
- Flywoo: ROBO RB 2207 SE load data for both KVs (image on the product page). 50% and 100% throttle, the 1750KV at 24 V and the 2450KV at 16 V, seven props each; temperatures are after 5 s at full throttle. The 2450KV GF6045*2 table is left out (see the model notes).. Retrieved Oct 19, 2026.
- Flywoo: ROBO RB 2207 SE main product photo (the first in the gallery), used for finish. Retrieved Oct 19, 2026.
