2–2.5-inch FPV motor
VCI Spark 1203
A 4.8 g motor for 2- to 2.5-inch props; on VCI’s 8 V bench the 10000KV pulls 179 g at full throttle on a GF 2512-3.
- 2- to 2.5-inch quads
- 2S (10000KV) or 3S (7000KV)
- GF 2020-4 and GF 2512-3 props (VCI’s test props)
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 1203 motor drawn from VCI’s published sizes, not its exact design. Thrust, current and power are VCI’s bench figures for the GF 2512-3 prop at 8 V, read straight across between its throttle steps. Its data starts at 30% throttle.
- Max thrust
- 179 g
- GF 2512-3 prop, 8 V
- Weight
- 4.8 g
- with its cable; 4.9 g for the 7000KV
- Peak current
- 10.6 A
- full throttle
- Max power
- 85 W
- full throttle
from $21.60a motor at VCI Hobby
A set of four: $86.40
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
VCI’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the GF 2512-3: 107 g of thrust, 5.6 A, 45 W, 2.38 g per watt.
On your quad
1.1 : 1
Thrust to weight at full throttle: four motors pull 716 g with the GF 2512-3 at 8 V.
At 60% throttle they pull 428 g, 0.7 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 $21.60
About 180–210 g
On VCI’s bench the 10000KV pulled 179 g on a GF 2512-3 at 8 V and 10.57 A; the 7000KV pulled 208 g on the same prop at 12 V and 8.05 A.
Source: VCI spec sheet
Two KVs
VCI sells it in pairs, in 7000KV for 3S and 10000KV for 2S.
Source: VCI product page, VCI spec sheet
4.8 g
VCI gives 4.8 g with the cable for the 10000KV and 4.9 g for the 7000KV.
Source: VCI spec sheet
What to pair it with
Our reading of VCI’s numbers, so your build matches what the motor was tested with.
- ESC
- VCI’s peak currents are 11.31 A (10000KV, 8 V) and 8.77 A (7000KV, 12 V); pick an ESC rated above that per motor. (VCI spec sheet)
- Props
- VCI tested the 2-inch GF 2020-4 and the 2.5-inch GF 2512-3, which made more thrust on both KVs. (VCI spec sheet)
- Battery
- 2S for the 10000KV, 3S for the 7000KV, as VCI rates them. (VCI spec sheet)
- Frame
- Four M2 screws on a 9 × 9 mm pattern. (VCI drawing)
Where to buy
- VCI Hobbythe maker’s store; a pair, either KV$21.60seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 10,000 rpm/V (also 7000KV, for 3S) | VCI spec sheet, VCI product page |
| Stator | 12 × 3 mm (1203) | VCI spec sheet |
| Configuration | 9S12P (9 stator slots, 12 magnet poles) | VCI spec sheet |
| Battery | 2S (8 V) LiPo (3S (12 V) for the 7000KV) | VCI spec sheet |
| Weight | 4.8 g (with its cable; 4.9 g for the 7000KV) | VCI spec sheet |
| Dimensions | φ15.3 × 15.4 mm with the shaft, which stands 4.9 mm above the bell | VCI spec sheet, VCI drawing |
| Shaft | 1.5 mm, standing 4.9 mm above the bell; it also shows below the base | VCI spec sheet, VCI drawing |
| Mounting | 4 × M2 holes on a 9 mm circle (9 × 9 mm) (the bell’s top has another 4 × M2 holes on a 5 mm circle) | VCI drawing |
| Magnets | N52SH arc magnets | VCI spec sheet |
| Internal resistance | 155 mΩ (245 mΩ for the 7000KV) | VCI spec sheet |
| Idle current | 1 A (at 10 V; 0.6 A for the 7000KV) | VCI spec sheet |
| Peak current | 11.31 A (the GF 2020-4’s full-throttle current at 8 V; 8.77 A for the 7000KV at 12 V) | VCI spec sheet |
| Max instantaneous power | 90.48 W (105.25 W for the 7000KV) | VCI spec sheet |
| Leads | 28 AWG silicone wire, 50 mm | VCI spec sheet |
Bench data
Redrawn from VCI’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.
7000KV on 3S, 12 V2 props
| Prop | Throttle | Current (A) | Thrust (g) | Efficiency (g/W) | Power (W) |
|---|---|---|---|---|---|
| GF 2512-3motor at 62 °C | 30% | 1.59 | 58 | 3.04 | 19.08 |
| 40% | 2.54 | 82 | 2.69 | 30.48 | |
| 50% | 3.52 | 109 | 2.58 | 42.24 | |
| 60% | 4.21 | 127 | 2.51 | 50.52 | |
| 70% | 4.98 | 147 | 2.46 | 59.76 | |
| 80% | 5.57 | 164 | 2.45 | 66.84 | |
| 90% | 6.58 | 180 | 2.28 | 78.96 | |
| 100% | 8.05 | 208 | 2.15 | 96.6 | |
| GF 2020-4motor at 69 °C | 30% | 1.69 | 59 | 2.91 | 20.28 |
| 40% | 2.54 | 77 | 2.53 | 30.48 | |
| 50% | 3.75 | 92 | 2.04 | 45 | |
| 60% | 4.62 | 112 | 2.02 | 55.44 | |
| 70% | 5.35 | 128 | 1.99 | 64.2 | |
| 80% | 6.01 | 141 | 1.96 | 72.12 | |
| 90% | 7.26 | 154 | 1.77 | 87.12 | |
| 100% | 8.77 | 180 | 1.71 | 105.24 |
Source: VCI spec sheet
10000KV on 2S, 8 V2 props
| Prop | Throttle | Current (A) | Thrust (g) | Efficiency (g/W) | Power (W) |
|---|---|---|---|---|---|
| GF 2512-3motor at 63 °C | 30% | 2.24 | 51 | 2.85 | 17.92 |
| 40% | 3.52 | 78 | 2.77 | 28.16 | |
| 50% | 4.78 | 95 | 2.48 | 38.24 | |
| 60% | 5.61 | 107 | 2.38 | 44.88 | |
| 70% | 6.93 | 129 | 2.33 | 55.44 | |
| 80% | 7.83 | 143 | 2.28 | 62.64 | |
| 90% | 8.8 | 155 | 2.2 | 70.4 | |
| 100% | 10.57 | 179 | 2.12 | 84.56 | |
| GF 2020-4motor at 68 °C | 30% | 2.38 | 43 | 2.26 | 19.04 |
| 40% | 3.77 | 60 | 1.99 | 30.16 | |
| 50% | 5.07 | 75 | 1.85 | 40.56 | |
| 60% | 6.34 | 92 | 1.81 | 50.72 | |
| 70% | 7.39 | 105 | 1.78 | 59.12 | |
| 80% | 8.35 | 118 | 1.77 | 66.8 | |
| 90% | 9.56 | 131 | 1.71 | 76.48 | |
| 100% | 11.31 | 151 | 1.67 | 90.48 |
Source: VCI spec sheet
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Magnets. N52SH arc magnets. (VCI spec sheet)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 10000KV 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 | 148,000 | 14,800 Hz | 88,800 |
| 4S full | 16.8 | 168,000 | 16,800 Hz | 100,800 |
| 6S nominal | 22.2 | 222,000 | 22,200 Hz | 133,200 |
| 6S full | 25.2 | 252,000 | 25,200 Hz | 151,200 |
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 VCI’s published sizes: the 12 × 3 mm stator, 15.3 mm bell, 10.5 mm height, 1.5 mm shaft, 9 mm mounting circle and 9 teeth and 12 magnets. Anything VCI 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
- VCI Hobby: VCI SPARK 1203 MOTOR-7000KV/10000KV (2PCS) (product page). Retrieved Oct 19, 2026.
- VCI Hobby: Spark 1203 drawing (image on the product page’s Specifications tab). Retrieved Oct 19, 2026.
- VCI Hobby: Spark 1203 spec sheets and testing data for the 7000KV at 12 V and the 10000KV at 8 V, each on a GF 2020-4 and a GF 2512-3 (image on the product page’s Specifications tab). VCI’s temperature is the shaft’s after a run from 0 to 100% throttle; its voltage column, the same on every row of a table, is left out.. Retrieved Oct 19, 2026.
- VCI Hobby: Spark 1203 10000KV product photo (first gallery image). Retrieved Oct 19, 2026.
- VCI Hobby: Spark 1203 top-view photo (second gallery image). Retrieved Oct 19, 2026.
