2S tiny whoop motor
GEPRC SPEEDX2 0803
A 2.4 g 0803 for 2S tiny whoops and 1.6-inch racing; on GEPRC’s bench at 8.4 V it pulls 76.56 g on a GF1635 three-blade at its 4.9 A maximum.
- 2S tiny whoops
- 1.6-inch racing
- 1.4 to 1.6-inch props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 0803 motor drawn from GEPRC’s published sizes, not its exact design. No-load speed is KV × 7.4 V, a nominal pack for this version. GEPRC’s bench tables for it step by thrust rather than throttle, so they are in the bench data below, not on this readout.
- Weight
- 2.4 g
Plain links: we earn nothing from them.
What you get
76 g on 2S
It pulled 76.56 g on a GF1635 three-blade at 8.4 V, drawing 4.9 A (41.16 W).
2.4 g
GEPRC weighs it at 2.4 g; its lead is 40 mm to the plug.
Source: GEPRC spec image, GEPRC weight photo, GEPRC size photo
Three-hole base
Three M1.4 holes on a 6.6 mm circle, and a 1 mm shaft standing 5 mm above the hub.
Source: GEPRC drawing
Class H wire, N52H magnets
The windings use Class H enamelled wire rated to 180 °C, around sintered N52H magnets.
Source: GEPRC spec image, 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 6 A ESC. Its table stops at the 4.9 A maximum current it gives. (GEPRC spec image, GEPRC load performance)
- Props
- GEPRC tested it on a GF1635 three-blade; its page says 1.4 and 1.6-inch props, and lists it for 1.6-inch racing. (GEPRC product page, GEPRC load performance, GEPRC summary image)
- Battery
- 2S, with packs of 380–530 mAh. (GEPRC product page, GEPRC spec image)
- Frame
- Three M1.4 holes, equally spaced on a 6.6 mm circle; GEPRC made it for tiny whoop frames. (GEPRC product page, GEPRC drawing)
Where to buy
- GEPRCthe maker’s store; one motor (a set of four is $43.99); out of stock when checked$11.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 11,000 rpm/V | GEPRC product page, GEPRC spec image |
| Stator | 8.4 × 2.8 mm (0803) (GEPRC gives the core as 0.2 mm “silicon copper sheet”) | GEPRC product page, GEPRC spec image |
| Configuration | 9N12P (9 stator slots, 12 magnet poles) | GEPRC product page, GEPRC spec image |
| Battery | 2S LiPo (8.4 V) (GEPRC recommends 2S packs of 380–530 mAh) | GEPRC product page, GEPRC spec image |
| Weight | 2.4 g | GEPRC product page, GEPRC spec image, GEPRC weight photo |
| Dimensions | φ10.7 × 15 mm overall; 9.2 mm from the mounting face to the top of the hub, with 5 mm of shaft above it; the bell is 5.2 mm tall (the 15 mm includes the shaft end below the base) | GEPRC product page, GEPRC drawing, GEPRC size photo |
| Shaft | 1 mm, standing 5 mm above the hub (GEPRC writes “1*5mm”) | GEPRC product page, GEPRC spec image, GEPRC drawing |
| Mounting | 3 × M1.4 holes, equally spaced on a 6.6 mm circle (GEPRC writes “3-M1.4-EQS-Ø6.6”) | GEPRC spec image, GEPRC drawing |
| Magnets | Sintered NdFeB, N52H | GEPRC product page, GEPRC spec image |
| Bearings | 3 × 1.5 × 1 mm | GEPRC spec image |
| Winding | Class H enamelled wire, rated to 180 °C | GEPRC spec image, GEPRC features image |
| Max current | 4.9 A (the last row of GEPRC’s 8.4 V table on a GF1635 three-blade) | GEPRC spec image, GEPRC load performance |
| Max power | 41.16 W (the input power at 4.9 A in GEPRC’s table) | GEPRC load performance, GEPRC summary image |
| Leads | 30 AWG, 40 mm, with a plug | GEPRC spec image, GEPRC size photo |
| In the box | 1 motor and a spare screw set (3 × M1.4) | GEPRC product page, GEPRC spec image |
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.
11000KV on 2S, 8.4 V1 prop
| Prop | Step | Current (A) | Power (W) | Thrust (g) | Efficiency (g/W) |
|---|---|---|---|---|---|
| GF1635 3B | 0.5 | 4.2 | 8.19 | 1.95 | |
| 1 | 8.4 | 18.37 | 2.19 | ||
| 1.5 | 12.6 | 27.49 | 2.18 | ||
| 2 | 16.8 | 37.35 | 2.22 | ||
| 2.5 | 21 | 46.5 | 2.21 | ||
| 3 | 25.2 | 54.68 | 2.17 | ||
| 3.5 | 29.4 | 61.6 | 2.1 | ||
| 4 | 33.6 | 67.35 | 2 | ||
| 4.5 | 37.8 | 73.5 | 1.94 | ||
| 4.9 | 41.16 | 76.56 | 1.86 |
Source: GEPRC load performance
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. Black, with a silver three-spoke top, over sintered N52H magnets. (GEPRC spec image, GEPRC product photo, GEPRC top photo)
- Stator. 8.4 × 2.8 mm, 9N12P, on 0.2 mm laminations, wound with Class H wire rated to 180 °C. (GEPRC product page, GEPRC spec image, GEPRC features image)
- Bearings. 3 × 1.5 × 1 mm bearings. (GEPRC spec image)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 11000KV 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 | 162,800 | 16,280 Hz | 97,680 |
| 4S full | 16.8 | 184,800 | 18,480 Hz | 110,880 |
| 6S nominal | 22.2 | 244,200 | 24,420 Hz | 146,520 |
| 6S full | 25.2 | 277,200 | 27,720 Hz | 166,320 |
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 8.4 × 2.8 mm stator, 10.7 mm bell, 9.2 mm height, 1 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 0803 Brushless Motor 11000KV (product page, with the spec list). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 11000KV specifications, below the 0802’s (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 product drawing, below the 0802’s (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 11000KV load performance at 8.4 V on a GF1635 three-blade, in 0.5 A current steps up to its 4.9 A maximum current (image on the product page, below the 0802’s tables). The speed column is blank and is left out.. Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 power, pull and suitability: 41.16 W, 76.56 g, 1.6-inch racing (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 on a scale, 2.4 g (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0802/0803 features (Class H enamelled wire, 0.2 mm laminations; image on the product page). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 product photo from the side (first gallery image). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 from above, showing the three-spoke top (gallery image). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 from below, showing the three-arm base and the leads (gallery image). Retrieved Oct 19, 2026.
- GEPRC: SPEEDX2 0803 sizes: 1 mm shaft, 10.7 mm across, 5.2 mm bell, 40 mm lead to the plug (gallery image). Retrieved Oct 19, 2026.
