1S tiny whoop motor
BetaFPV 0702
A 1.50 g motor for 65 mm 1S whoops like BetaFPV's Air65 II, pulling 35.7 g at full throttle on a Gemfan 1207 in BetaFPV's bench test (Racing, 30000KV).
- 65 mm 1S whoops (Air65 II)
- Freestyle (25000KV), racing (30000KV) or pro racing (36000KV)
- Gemfan 1207 or 1219S three-blade props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 0702 motor drawn from BetaFPV’s published sizes, not its exact design. Thrust, current and power are BetaFPV’s bench figures for the GF 1207-3P prop at 3.93 V, read straight across between its throttle steps. Its data starts at 20% throttle.
- Max thrust
- 36 g
- GF 1207-3P prop, 3.93 V
- Weight
- 1.5 g
- Racing and Freestyle; 1.59 g for the Champion. BetaFPV's scale photos show 1.44 g (Racing) and 1.51 g (Freestyle).
- Peak current
- 6.0 A
- full throttle
- Max power
- 23 W
- full throttle
from $39.99a motor at BETAFPV
A set of four: $159.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
BetaFPV’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 1207-3P: 18 g of thrust, 3.0 A, 12 W, 1.53 g per watt.
On your quad
0.2 : 1
Thrust to weight at full throttle: four motors pull 143 g with the GF 1207-3P at 3.93 V.
At 60% throttle they pull 72 g, 0.1 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 $39.99
0.10 mm stator core
BetaFPV says the thin core cuts magnetic losses and heat, and measured 0.1–0.2 g/W more than 0702 motors with a 0.15 mm core.
Source: BetaFPV product page
Three tunes
Freestyle 25000KV, Racing 30000KV and Champion 36000KV, each with its own magnetic circuit and winding.
Source: BetaFPV product page
Ball bearings on the Champion
The Champion runs on dual ball bearings and weighs 1.59 g; the Racing and Freestyle use brass bushings and weigh 1.50 g.
Source: BetaFPV product page
Built for crashes
BetaFPV upgraded the rotor housing material and reinforced the shaft for this version.
Source: BetaFPV product page
Bench numbers
At full throttle on a Gemfan 1207 three-blade: 39.3 g for the Champion, 35.7 g for the Racing, 28.8 g for the Freestyle.
Source: BetaFPV drawing and bench table
What to pair it with
Our reading of BetaFPV’s numbers, so your build matches what the motor was tested with.
- ESC
- BetaFPV pairs it with its Matrix 1S 5IN1 II board. At full throttle the Champion draws 7.17 A, the Racing 6.03 A and the Freestyle 3.86 A per motor. (BetaFPV product page, BetaFPV drawing and bench table)
- Props
- Gemfan 1207 three-blade for the Champion and Racing, Gemfan 1219S three-blade for the Freestyle. BetaFPV's bench tables use the 1207 for all three. (BetaFPV product page, BetaFPV drawing and bench table)
- Battery
- 1S; BetaFPV suggests its LAVA II 1S 280 mAh or 320 mAh packs. (BetaFPV product page)
- Frame
- Three M1.4 screws on a 6.6 mm circle; BetaFPV names its Air65 II and Air65 Champion frames. Twelve M1.4×3 screws come in the box. (BetaFPV product page)
Where to buy
- BETAFPVthe maker's store; set of 4: $39.99 Racing or Freestyle, $44.99 Champion$39.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 30,000 rpm/V (Racing version; also Champion 36000KV and Freestyle 25000KV) | BetaFPV product page |
| Stator | 7 × 2 mm (0702), 0.10 mm core (size from BetaFPV's name; BetaFPV compares the 0.10 mm core with 0.15 mm cores) | BetaFPV product page |
| Battery | 1S LiPo (rated 4.2 V) | BetaFPV product page |
| Weight | 1.5 g (Racing and Freestyle; 1.59 g for the Champion. BetaFPV's scale photos show 1.44 g (Racing) and 1.51 g (Freestyle).) | BetaFPV product page |
| Dimensions | φ9 × 11.95 mm (with shaft); body 8.55 mm tall | BetaFPV drawing and bench table |
| Shaft | 1.0 mm, protrudes 3.4 mm | BetaFPV product page |
| Mounting | 3 × M1.4 holes, evenly spaced on a 6.6 mm circle | BetaFPV product page |
| Bearings | brass bushings (Racing, Freestyle); dual ball bearings (Champion) | BetaFPV product page |
| Max current | 6.03 A (Racing; 7.17 A Champion, 3.86 A Freestyle) | BetaFPV product page |
| Max power | 23.3 W (Racing; 27.53 W Champion, 15.01 W Freestyle) | BetaFPV product page |
| Leads | 30 AWG, 35 mm, JST 1.25 mm 3-pin plug | BetaFPV product page |
| In the box | 4 motors, 12 × M1.4×3 screws | BetaFPV product page |
Bench data
Redrawn from BetaFPV’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.
25000KV on 1S, 3.93 V1 prop
| Prop | Voltage (V) | Throttle | Current (A) | Thrust (g) | Efficiency (g/W) | Power (W) | RPM |
|---|---|---|---|---|---|---|---|
| GF 1207-3P (Gemfan 1207, 3-blade) | 3.93 | 20% | 0.21 | 1.1 | 1.36 | 0.81 | 12534 |
| 3.93 | 30% | 0.57 | 3.5 | 1.57 | 2.23 | 20705 | |
| 3.92 | 40% | 0.97 | 6.5 | 1.7 | 3.82 | 27855 | |
| 3.92 | 50% | 1.43 | 10.4 | 1.86 | 5.58 | 33787 | |
| 3.91 | 60% | 1.84 | 14.3 | 1.98 | 7.21 | 38905 | |
| 3.91 | 70% | 2.24 | 17.7 | 2.02 | 8.76 | 43233 | |
| 3.9 | 80% | 2.68 | 21.4 | 2.05 | 10.45 | 47380 | |
| 3.89 | 90% | 3.19 | 25.2 | 2.03 | 12.4 | 51113 | |
| 3.88 | 100% | 3.86 | 28.8 | 1.92 | 15.01 | 54755 |
Source: BetaFPV drawing and bench table
30000KV on 1S, 3.93 V1 prop
| Prop | Voltage (V) | Throttle | Current (A) | Thrust (g) | Efficiency (g/W) | Power (W) | RPM |
|---|---|---|---|---|---|---|---|
| GF 1207-3P (Gemfan 1207, 3-blade) | 3.93 | 20% | 0.42 | 1.8 | 1.09 | 1.65 | 14757 |
| 3.92 | 30% | 1.01 | 5.1 | 1.28 | 3.97 | 23541 | |
| 3.91 | 40% | 1.71 | 9.3 | 1.39 | 6.69 | 31298 | |
| 3.9 | 50% | 2.39 | 13.5 | 1.45 | 9.32 | 37570 | |
| 3.89 | 60% | 3.01 | 17.9 | 1.53 | 11.7 | 43046 | |
| 3.89 | 70% | 3.62 | 22 | 1.56 | 14.07 | 47557 | |
| 3.88 | 80% | 4.35 | 26.8 | 1.59 | 16.85 | 52514 | |
| 3.87 | 90% | 5.07 | 31.3 | 1.6 | 19.6 | 56887 | |
| 3.86 | 100% | 6.03 | 35.7 | 1.54 | 23.23 | 60394 |
Source: BetaFPV drawing and bench table
36000KV on 1S, 3.92 V1 prop
| Prop | Voltage (V) | Throttle | Current (A) | Thrust (g) | Efficiency (g/W) | Power (W) | RPM |
|---|---|---|---|---|---|---|---|
| GF 1207-3P (Gemfan 1207, 3-blade) | 3.92 | 20% | 0.74 | 2 | 0.69 | 2.9 | 5602 |
| 3.92 | 30% | 1.15 | 6.4 | 1.42 | 4.51 | 25866 | |
| 3.91 | 40% | 1.93 | 11 | 1.46 | 7.54 | 33792 | |
| 3.9 | 50% | 2.75 | 15.7 | 1.46 | 10.72 | 40248 | |
| 3.89 | 60% | 3.48 | 20.6 | 1.52 | 13.53 | 45775 | |
| 3.88 | 70% | 4.24 | 25.5 | 1.55 | 16.43 | 51074 | |
| 3.87 | 80% | 5.13 | 30.5 | 1.54 | 19.83 | 55825 | |
| 3.85 | 90% | 6.03 | 34.8 | 1.5 | 23.21 | 59947 | |
| 3.84 | 100% | 7.17 | 39.3 | 1.43 | 27.53 | 63597 |
Source: BetaFPV drawing and bench table
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. Polished silver, with an anodised top and base: orange on the Champion, purple on the Racing, cyan on the Freestyle. (BetaFPV product photo)
- Stator. A 0.10 mm stator core; BetaFPV compares it with the 0.15 mm cores of other 0702 motors. (BetaFPV product page)
- Bearings. Dual ball bearings on the Champion; brass bushings on the Racing and Freestyle. (BetaFPV product page)
- Shaft. 1.0 mm, standing 3.4 mm above the bell; BetaFPV says it reinforced the shaft for this version. (BetaFPV product page)
- Leads. 30 AWG, 35 mm, ending in a JST 1.25 mm three-pin plug. (BetaFPV product page)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 30000KV 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 | 444,000 | 44,400 Hz | 266,400 |
| 4S full | 16.8 | 504,000 | 50,400 Hz | 302,400 |
| 6S nominal | 22.2 | 666,000 | 66,600 Hz | 399,600 |
| 6S full | 25.2 | 756,000 | 75,600 Hz | 453,600 |
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 BetaFPV’s published sizes: the 7 × 2 mm stator, 9 mm bell, 8.55 mm height, 1 mm shaft and 6.6 mm mounting circle. Anything BetaFPV 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
- BETAFPV: 0702 Brushless Motors (2026) (product page). Retrieved Oct 19, 2026.
- BETAFPV: 0702 Champion / Racing / Freestyle outline drawing and load performance table (image on the product page). The bench voltage falls from about 3.93 V to 3.84 V across the throttle steps; each table's voltage is its 20% row. The Champion's 20% row lists 5602 RPM; copied as printed.. Retrieved Oct 19, 2026.
- BETAFPV: 0702 (2026) product photo of the Racing version, used for finish and spoke count. Retrieved Oct 19, 2026.
