1.6 to 2-inch 1S whoop and micro motor
GEPRC SPEEDX2 1002
A 2.5 g 1002 for 1S whoops and 1.6 to 2-inch micros; on GEPRC’s 3.7 V bench the 25000KV pulls up to 103 g at full throttle on a 2-inch GF2015R two-blade.
- 1S whoops and 1.6 to 2-inch micros
- 1S (25000KV) or 1S–2S (18000KV)
- 40 mm and 2-inch Gemfan props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 1002 motor drawn from GEPRC’s published sizes, not its exact design. Thrust, current and power are GEPRC’s bench figures for the GF2015R*2 prop at 3.7 V, read straight across between its throttle steps. Its data starts at 50% throttle.
- Max thrust
- 103 g
- GF2015R*2 prop, 3.7 V
- Weight
- 2.5 g
- with 50 mm of lead
- Peak current
- 12.4 A
- full throttle
- Max power
- 46 W
- full throttle
from $12.99a motor at GEPRC
A set of four: $51.96
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 GF2015R*2: 61 g of thrust, 5.6 A, 21 W, 3.22 g per watt.
On your quad
0.6 : 1
Thrust to weight at full throttle: four motors pull 412 g with the GF2015R*2 at 3.7 V.
At 60% throttle they pull 242 g, 0.4 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 $12.99
103 g on 1S
The 25000KV pulled 103 g at full throttle on a GF2015R*2 at 3.7 V, drawing 12.4 A.
Source: GEPRC datasheet
Three-hole base
Three M1.4 holes on a 6.6 mm circle, on a 1 mm base plate.
Source: GEPRC drawing
Two KVs
25000KV for 1S, and 18000KV rated for 1S–2S.
Source: GEPRC product page, 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 recommends a 12 A ESC. Its tables peak at 15.9 A (25000KV) and 11.1 A (18000KV), both on the GF2023R*3 at full throttle, runs GEPRC marks as hot. (GEPRC product page, GEPRC datasheet)
- Props
- GEPRC tested five Gemfan props at 3.7 V: GF1610R*2, GF1635R*3, GF1635R*4, GF2015R*2 and GF2023R*3. The 2-inch GF2015R*2 gave the most thrust on both KVs (103 g and 76 g). (GEPRC datasheet)
- Battery
- 1S for the 25000KV; 1S or 2S for the 18000KV. (GEPRC product page, GEPRC spec image)
- Frame
- Three M1.4 holes on a 6.6 mm circle; GEPRC says it suits 1.6 to 2-inch drones. (GEPRC product page, GEPRC drawing)
Where to buy
- GEPRCthe maker’s store; one motor, either KV, with or without a plug (sets of four $49.99)$12.99seen Oct 19, 2026Visit
- GetFPV18000KV or 25000KV, no plugprice on the store’s pageVisit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 25,000 rpm/V (also 18000KV) | GEPRC product page, GEPRC spec image |
| Stator | 10 × 2 mm (1002) | GEPRC product page, GEPRC spec image |
| Configuration | 9N12P (9 stator slots, 12 magnet poles) | GEPRC product page, GEPRC spec image |
| Battery | 1S LiPo (25000KV); 1S–2S (18000KV) | GEPRC product page, GEPRC spec image |
| Weight | 2.5 g (with 50 mm of lead) | GEPRC product page, GEPRC spec image |
| Dimensions | φ13.69 × 7.75 mm without the shaft, with 3.45 mm of shaft above the bell | GEPRC product page, GEPRC drawing |
| Shaft | 1.5 mm, standing 3.45 mm above the bell | GEPRC product page, GEPRC drawing |
| Mounting | 3 × M1.4 holes on a 6.6 mm circle (GEPRC’s spec list writes it as 6.6 × 6.6 mm (M1.4); the drawing shows three holes) | GEPRC product page, GEPRC drawing |
| Bearings | 415ZZ | GEPRC product page, GEPRC spec image |
| Max current | 15.9 A (18000KV 11.1 A; both are the full-throttle current on the GF2023R*3 at 3.7 V) | GEPRC product page, GEPRC datasheet |
| Max power | 58.8 W (18000KV 41.1 W, on the same prop) | GEPRC product page, GEPRC datasheet |
| Leads | 28 AWG, 36 mm (36 mm to the plug on the plugged version; GEPRC’s photo of the version without a plug shows 44 mm) | GEPRC product page, GEPRC size photo |
| In the box | 6 × M1.4×3 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.
18000KV on 1S–2S, 3.7 V5 props
| Prop | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|
| GF2015R*2motor at 68 °C | 50% | 2.7 | 35 | 10 | 3.504 |
| 100% | 8.6 | 76 | 31.8 | 2.388 | |
| GF1635R*4motor at 65 °C | 50% | 2.3 | 29 | 8.5 | 3.408 |
| 100% | 8.3 | 65 | 30.7 | 2.117 | |
| GF2023R*3motor at 80 °C | 50% | 3.4 | 34 | 12.6 | 2.703 |
| 100% | 11.1 | 62 | 41.1 | 1.51 | |
| GF1635R*3motor at 63 °C | 50% | 1.9 | 26 | 7 | 3.698 |
| 100% | 7.5 | 61 | 27.8 | 2.198 | |
| GF1610R*2motor at 58 °C | 50% | 1.7 | 27 | 6.3 | 4.293 |
| 100% | 6.2 | 59 | 22.9 | 2.572 |
Source: GEPRC datasheet
25000KV on 1S, 3.7 V5 props
| Prop | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|
| GF2015R*2motor at 74 °C | 50% | 3.9 | 50 | 14.4 | 3.465 |
| 100% | 12.4 | 103 | 45.9 | 2.245 | |
| GF1635R*4motor at 70 °C | 50% | 3.4 | 41 | 12.6 | 3.259 |
| 100% | 11.7 | 87 | 43.3 | 2.01 | |
| GF2023R*3motor at 85 °C | 50% | 5 | 48 | 18.5 | 2.595 |
| 100% | 15.9 | 84 | 58.8 | 1.428 | |
| GF1635R*3motor at 69 °C | 50% | 3 | 37 | 11.1 | 3.333 |
| 100% | 10.6 | 83 | 39.2 | 2.116 | |
| GF1610R*2motor at 64 °C | 50% | 2.5 | 37 | 9.3 | 4 |
| 100% | 8.9 | 80 | 32.9 | 2.429 |
Source: GEPRC datasheet
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. Titanium grey with blue cut edges and a four-spoke top; GEPRC calls the colour titanium blue. (GEPRC product page, GEPRC product photo)
- Stator. 10 × 2 mm, 9N12P. (GEPRC product page, GEPRC spec image)
- Bearings. 415ZZ 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 25000KV 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 | 370,000 | 37,000 Hz | 222,000 |
| 4S full | 16.8 | 420,000 | 42,000 Hz | 252,000 |
| 6S nominal | 22.2 | 555,000 | 55,500 Hz | 333,000 |
| 6S full | 25.2 | 630,000 | 63,000 Hz | 378,000 |
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 10 × 2 mm stator, 13.69 mm bell, 7.75 mm height, 1.5 mm shaft, 6.6 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 1002 25000KV/18000KV Motor (product page, with a spec list for each KV). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1002 specifications for both KVs (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1002 product drawing (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1002 datasheet, 25000KV and 18000KV at 3.7 V on five Gemfan props, 50% and full throttle (image on the product page). GEPRC gives one motor temperature per prop, without saying after how long, and marks the GF2023R*3 runs hot.. Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1002 sizes and lead lengths, with and without the plug (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 1002 product photo (first gallery image). Retrieved Oct 19, 2026.
