1.6 to 2.2-inch micro FPV motor
GEPRC SPEEDX2 1104
A 5.2 g 1104 for 1.6 to 2.2-inch quads on 2S–3S; on GEPRC’s 3S bench it pulls about 258 g at full throttle on a Gemfan 2219-3, drawing 13.03 A.
- 1.6 to 2.2-inch lightweight quads
- 2S–3S
- 2 to 2.2-inch props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 1104 motor drawn from GEPRC’s published sizes, not its exact design. Thrust, current and power are GEPRC’s bench figures for the GEMFAN 2219-3 prop at 11.99 V, read straight across between its throttle steps. Its data starts at 30% throttle.
- Max thrust
- 258 g
- GEMFAN 2219-3 prop, 11.99 V
- Weight
- 5.2 g
- ±0.2 g, with the leads
- Peak current
- 13.0 A
- full throttle
- Max power
- 154 W
- full throttle
from $10.99a motor at GEPRC
A set of four: $43.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
GEPRC’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the GEMFAN 2219-3: 143 g of thrust, 5.9 A, 70 W, 2.18 g per watt.
On your quad
1.6 : 1
Thrust to weight at full throttle: four motors pull 1,032 g with the GEMFAN 2219-3 at 11.99 V.
At 60% throttle they pull 570 g, 0.9 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 for $10.99
About 258 g on 3S
At full throttle on a Gemfan 2219-3 at about 11.8 V it pulled 257.95 g at 53,902 rpm, drawing 13.03 A.
Source: GEPRC data sheet
One-piece bell
GEPRC machines the bell in one piece and says it resists deformation and crash damage.
Source: GEPRC product page, GEPRC features image
N52H arc magnets
Curved N52H magnets, which GEPRC says hold their strength at high temperature.
Source: GEPRC features image
Multi-strand winding
A multi-strand winding and large openings, which GEPRC says lower copper loss and shed heat faster.
Source: GEPRC product page, GEPRC features 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 20 A ESC. Its tables peak at 13.07 A at full throttle on 3S. (GEPRC spec image, GEPRC data sheet)
- Props
- GEPRC tested four props: Gemfan 2219-3, HQ T2×2×3, HQ T2.2×1.6×3 and the five-blade Gemfan 2020-D51MM-5 (2S only). The Gemfan 2219-3 gave the most thrust on both 2S and 3S. (GEPRC data sheet)
- Battery
- 2S or 3S (7.4–11.1 V). (GEPRC spec image)
- Frame
- Four M2 holes on a 9 mm circle; GEPRC says it suits 1.6 to 2.2-inch lightweight quads. (GEPRC spec image, GEPRC drawing)
Where to buy
- GEPRCthe maker’s store; one motor (a set of four is $39.99)$10.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 7,500 rpm/V | GEPRC product page |
| Stator | 11 × 4 mm (1104) (from the size in GEPRC’s name) | GEPRC product page |
| Configuration | 9N12P (9 stator slots, 12 magnet poles) | GEPRC product page, GEPRC spec image |
| Battery | 2S–3S LiPo (7.4–11.1 V) | GEPRC product page, GEPRC spec image |
| Weight | 5.2 g (±0.2 g, with the leads) | GEPRC product page, GEPRC spec image |
| Dimensions | φ14.5 × 11.5 mm without the shaft; 17.2 mm overall, with 4.95 mm of shaft above the bell | GEPRC spec image, GEPRC drawing |
| Shaft | 1.5 mm, standing 4.95 mm above the bell; four M2 holes on a 5 mm circle in the top of the bell | GEPRC spec image, GEPRC drawing, GEPRC features image |
| Mounting | 4 × M2 holes on a 9 mm circle | GEPRC spec image, GEPRC drawing |
| Bell | One-piece, CNC-machined (GEPRC’s text says aviation aluminium alloy; its feature image says high-strength carbon steel) | GEPRC product page, GEPRC features image |
| Magnets | N52H arc magnets | GEPRC product page, GEPRC features image |
| Bearings | NMB (the product page’s text says NSK/NMB) | GEPRC spec image, GEPRC features image |
| Winding | Multi-strand copper | GEPRC product page, GEPRC features image |
| Internal resistance | 150 mΩ (GEPRC gives it as interphase resistance) | GEPRC product page, GEPRC spec image |
| Peak current | 13.2 A (on 3S; the bench tables peak at 13.067 A) | GEPRC product page, GEPRC spec image |
| Max power | 155 W | GEPRC product page, GEPRC spec image |
| Leads | 28 AWG, 60 mm | GEPRC product page, GEPRC spec image |
| In the box | 6 × M2×4 round-head screws | GEPRC product page |
Bench data
Redrawn from GEPRC’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.
7500KV on 2S–3S7 props
| Prop | Throttle | Voltage (V) | Current (A) | Thrust (g) | RPM | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|---|
| GEMFAN 2219-3at 11.99 V | 30% | 11.99 | 1.568 | 50.56 | 22458 | 18.8 | 2.69 |
| 50% | 11.95 | 4.133 | 113.73 | 35099 | 49.39 | 2.3 | |
| 100% | 11.81 | 13.03 | 257.95 | 53902 | 153.88 | 1.68 | |
| HQprop T2.2X1.6X3at 11.99 V | 30% | 11.99 | 1.563 | 48.99 | 23905 | 18.74 | 2.61 |
| 50% | 11.95 | 4.082 | 114.74 | 35907 | 48.78 | 2.35 | |
| 100% | 11.81 | 13.067 | 256.98 | 53351 | 154.32 | 1.67 | |
| HQprop T2X2X3at 12 V | 30% | 12 | 1.442 | 41.33 | 23696 | 17.3 | 2.39 |
| 50% | 11.96 | 3.891 | 104.31 | 36449 | 46.54 | 2.24 | |
| 100% | 11.81 | 13.049 | 226.35 | 54321 | 154.11 | 1.47 | |
| GEMFAN 2219-3at 7.54 V | 30% | 7.54 | 0.814 | 20.98 | 14854 | 6.14 | 3.42 |
| 50% | 7.52 | 2.273 | 52.61 | 23961 | 17.09 | 3.08 | |
| 100% | 7.43 | 7.688 | 148.82 | 39878 | 57.12 | 2.61 | |
| HQprop T2.2X1.6X3at 7.53 V | 30% | 7.53 | 0.755 | 19.86 | 14540 | 5.69 | 3.49 |
| 50% | 7.51 | 2.112 | 50.39 | 23741 | 15.86 | 3.18 | |
| 100% | 7.43 | 7.436 | 144.88 | 40582 | 55.25 | 2.62 | |
| GEMFAN 2020-D51MM-5at 7.53 V | 30% | 7.53 | 0.932 | 21.99 | 15023 | 7.02 | 3.13 |
| 50% | 7.5 | 2.677 | 51.34 | 22788 | 20.08 | 2.56 | |
| 100% | 7.4 | 9.209 | 134.73 | 35982 | 68.15 | 1.98 | |
| HQprop T2X2X3at 7.52 V | 30% | 7.52 | 0.751 | 16.66 | 14773 | 5.65 | 2.95 |
| 50% | 7.5 | 2.095 | 42.75 | 23462 | 15.71 | 2.72 | |
| 100% | 7.42 | 7.317 | 123.78 | 40904 | 54.29 | 2.28 |
Source: GEPRC data sheet
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. One-piece CNC-machined bell with N52H arc magnets; GEPRC’s text says aviation aluminium alloy and its feature image carbon steel. (GEPRC product page, GEPRC features image)
- Stator. 9N12P, wound with multi-strand copper wire. (GEPRC product page, GEPRC features image)
- Bearings. NMB bearings. (GEPRC spec image, GEPRC features image)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 7500KV 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 | 111,000 | 11,100 Hz | 66,600 |
| 4S full | 16.8 | 126,000 | 12,600 Hz | 75,600 |
| 6S nominal | 22.2 | 166,500 | 16,650 Hz | 99,900 |
| 6S full | 25.2 | 189,000 | 18,900 Hz | 113,400 |
A 12-pole rotor has 6 pole pairs, so every turn of the shaft is 6 electrical cycles, and a six-step ESC switches the phases 36 times per turn.
About the 3D model
A generic outrunner drawn from GEPRC’s published sizes: the 11 × 4 mm stator, 14.5 mm bell, 11.5 mm height, 1.5 mm shaft, 9 mm mounting circle and 9 teeth and 12 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 1104 7500KV Motor (product page, with features and the spec list). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 specifications (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 product drawing (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 motor data sheet, 30%, 50% and 100% throttle on four props at 2S and 3S (image on the product page). Each row’s voltage is as measured; the table’s voltage is its 30% row.. Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 key features (one-piece shell, N52H arc magnets, NMB bearings; image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 features (multi-strand winding, 1.5 mm shaft; image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 product photo (first gallery image). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1104 from above (gallery image). Retrieved Oct 19, 2026.