1S tiny whoop motor
T-Motor M0802
T-Motor's first 1S brushless motor, for 65–75 mm whoops: a one-piece bell with N52 arc magnets at 1.91 g, in 22000KV, 25000KV and 27000KV.
- 65–75 mm 1S tiny whoops
- 31–35 mm whoop props
- 1S
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 0802 motor drawn from T-Motor’s published sizes, not its exact design. Thrust, current and power are T-Motor’s bench figures for the M12199 prop at 4.2 V, read straight across between its throttle steps. Its data starts at 50% throttle.
- Max thrust
- 39 g
- M12199 prop, 4.2 V
- Weight
- 1.91 g
- with leads; the same for 22000KV; 1.78 g for 27000KV
- Peak current
- 4.3 A
- full throttle
- Max power
- 18 W
- full throttle
from $10.90a motor at T-Motor
A set of four: $43.60
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
T-Motor’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the M12199: 25 g of thrust, 2.1 A, 9 W, 2.82 g per watt.
On your quad
0.2 : 1
Thrust to weight at full throttle: four motors pull 154 g with the M12199 at 4.2 V.
At 60% throttle they pull 99 g, 0.2 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 $10.90
1S micro motor
T-Motor's first 1S brushless motor, for 65–75 mm micro whoops on 31–35 mm props.
Source: T-Hobby 22000KV page
One-piece bell
A blue Unibell design that T-Motor says resists crashes better.
Source: T-Hobby 22000KV page
N52 arc magnets
T-Motor says they give strong power, stable output and better cooling.
Source: T-Hobby 22000KV page
1.91 g
1.91 g with leads (25000KV and 22000KV); 1.78 g for the 27000KV.
Source: T-Motor 25000KV specs and test
Bench data
Thrust, current, power and efficiency per throttle step for each KV on T-Motor and Gemfan 31–35 mm props, with RPM for the 22000KV and 25000KV.
Source: T-Motor 25000KV specs and test
What to pair it with
Our reading of T-Motor’s numbers, so your build matches what the motor was tested with.
- ESC
- Peak current over 10 s is 4.4 A (22000KV), 5.39 A (25000KV) and 5.65 A (27000KV), so a 1S AIO rated for 6 A or more per motor covers all three. (T-Motor 22000KV specs and test, T-Motor 25000KV specs and test, T-Motor 27000KV specs and test)
- Props
- T-Motor recommends 31–35 mm whoop props. At full throttle the 25000KV pulls 38.6 g on both T-Motor's M12199 and Gemfan's 35 mm three-blade. (T-Hobby 22000KV page, T-Motor 25000KV specs and test)
- Battery
- 1S. (T-Motor 25000KV specs and test)
- Frame
- 65–75 mm micro whoops. The base takes three M1.4 screws on a 6.6 mm circle. (T-Hobby 22000KV page, T-Motor 25000KV specs and test)
Where to buy
- T-Motorthe maker's store (Tmotorhobby), 22000KV$10.90seen Oct 19, 2026Visit
- T-HobbyT-Motor's hobby-brand store, 25000KV$10.90seen Oct 19, 2026Visit
- GetFPVsold as M0802II, 22000KV/25000KV/27000KVprice 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 22000KV and 27000KV) | T-Motor 25000KV specs and test |
| Stator | 8 × 2 mm (0802) | T-Hobby 22000KV page |
| Configuration | 9N12P (9 stator slots, 12 magnet poles) | T-Motor 25000KV specs and test |
| Battery | 1S LiPo | T-Motor 25000KV specs and test |
| Weight | 1.91 g (with leads; the same for 22000KV; 1.78 g for 27000KV) | T-Motor 25000KV specs and test |
| Dimensions | Φ10.6 × 12.2 mm (12.2 mm is the full length, shaft included) | T-Motor 25000KV specs and test |
| Shaft | 1 mm, protrudes 5 mm (the drawing shows Φ1 for every KV; the spec tables say 1 mm for 22000KV, 1.5 mm for 25000KV, and 1.5 mm inside / 1 mm outside for 27000KV) | T-Motor 25000KV specs and test |
| Mounting | 3 × M1.4 holes on a 6.6 mm circle | T-Motor 25000KV specs and test |
| Bell | one piece (Unibell) | T-Hobby 22000KV page |
| Magnets | N52 arc magnets | T-Hobby 22000KV page |
| Idle current | 0.56 A (at 4 V; 0.49 A for 22000KV, 0.62 A for 27000KV) | T-Motor 25000KV specs and test |
| Peak current | 5.39 A (for 10 s; 4.4 A for 22000KV, 5.65 A for 27000KV) | T-Motor 25000KV specs and test |
| Max power | 22.3 W (for 10 s; 18.1 W for 22000KV, 21 W for 27000KV) | T-Motor 25000KV specs and test |
| Leads | 33.5 mm, with a JST 1.25 plug (27000KV: 30 mm, XH-3P/1.25 plug) | T-Motor 25000KV specs and test |
| In the box | 1 × motor, 1 × parts bag | T-Hobby 22000KV page |
Bench data
Redrawn from T-Motor’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.
22000KV on 1S, 4.2 V4 props
| Prop | Throttle | Voltage (V) | Current (A) | RPM | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|---|
| GF35mm-3 (Gemfan 35 mm, 3-blade) | 50% | 4.2 | 1.5 | 33302 | 17.9 | 6.3 | 2.83 |
| 60% | 4.2 | 1.9 | 37837 | 22 | 7.9 | 2.79 | |
| 70% | 4.2 | 2.3 | 40928 | 25.5 | 9.4 | 2.72 | |
| 80% | 4.2 | 2.7 | 44966 | 29.1 | 11 | 2.64 | |
| 90% | 4.1 | 3.3 | 47981 | 34.6 | 13.8 | 2.5 | |
| 100% | 4.1 | 4.1 | 52615 | 39.6 | 17 | 2.33 | |
| GF35mm-4 (Gemfan 35 mm, 4-blade) | 50% | 4.2 | 1.5 | 33337 | 12.3 | 6.4 | 1.92 |
| 60% | 4.2 | 1.9 | 36395 | 16.2 | 8 | 2.03 | |
| 70% | 4.2 | 2.4 | 39573 | 21.9 | 9.9 | 2.21 | |
| 80% | 4.2 | 2.8 | 42164 | 27.6 | 11.6 | 2.38 | |
| 90% | 4.1 | 3.5 | 45813 | 33 | 14.6 | 2.26 | |
| 100% | 4.1 | 4.4 | 48974 | 37 | 18.1 | 2.04 | |
| GF1220-4 (Gemfan, 4-blade) | 50% | 4.2 | 1.5 | 33290 | 5.5 | 6.3 | 0.37 |
| 60% | 4.2 | 1.9 | 37549 | 13 | 7.9 | 2.1 | |
| 70% | 4.2 | 2.2 | 40898 | 19.3 | 9.3 | 2.38 | |
| 80% | 4.2 | 2.7 | 42744 | 25.6 | 11.3 | 2.51 | |
| 90% | 4.1 | 3.5 | 46679 | 30.4 | 14.6 | 2.39 | |
| 100% | 4.1 | 4.2 | 51790 | 36.8 | 17.2 | 2.43 | |
| GF1219-3 (Gemfan, 3-blade) | 50% | 4.2 | 1.4 | 36954 | 12 | 6 | 2 |
| 60% | 4.2 | 1.7 | 40138 | 16.3 | 7.2 | 2.26 | |
| 70% | 4.2 | 2.1 | 42863 | 20.6 | 8.8 | 2.34 | |
| 80% | 4.2 | 2.5 | 43233 | 22.7 | 10.2 | 2.23 | |
| 90% | 4.2 | 3.1 | 50337 | 28.4 | 12.7 | 2.23 | |
| 100% | 4.1 | 3.8 | 54506 | 32.9 | 15.7 | 2.1 |
Source: T-Motor 22000KV specs and test
25000KV on 1S, 4.2 V5 props
| Prop | Throttle | Voltage (V) | Current (A) | RPM | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|---|
| M12199 (T-Motor 31 mm, 3-blade) | 50% | 4.2 | 1.7 | 32817 | 22.2 | 7.2 | 3.08 |
| 60% | 4.2 | 2.1 | 36857 | 24.8 | 8.8 | 2.82 | |
| 70% | 4.2 | 2.5 | 37627 | 27.4 | 10.3 | 2.66 | |
| 80% | 4.2 | 2.9 | 41128 | 30.4 | 12.1 | 2.51 | |
| 90% | 4.2 | 3.4 | 47978 | 34 | 14.3 | 2.38 | |
| 100% | 4.2 | 4.3 | 55116 | 38.6 | 18 | 2.14 | |
| GF35mm-3 (Gemfan 35 mm, 3-blade) | 50% | 4.2 | 1.8 | 31027 | 20.2 | 7.6 | 2.66 |
| 60% | 4.2 | 2.2 | 36212 | 23.8 | 9.4 | 2.53 | |
| 70% | 4.2 | 2.7 | 40036 | 26.8 | 11.5 | 2.33 | |
| 80% | 4.2 | 3.2 | 41620 | 30.3 | 13.2 | 2.3 | |
| 90% | 4.2 | 4 | 45675 | 34.7 | 16.5 | 2.1 | |
| 100% | 4.1 | 5.1 | 48293 | 38.6 | 21.3 | 1.81 | |
| GF35mm-4 (Gemfan 35 mm, 4-blade) | 50% | 4.2 | 1.9 | 31490 | 18 | 7.7 | 2.33 |
| 60% | 4.2 | 2.3 | 35446 | 21.3 | 9.6 | 2.22 | |
| 70% | 4.2 | 2.8 | 37894 | 24.1 | 11.6 | 2.08 | |
| 80% | 4.2 | 3.3 | 40622 | 26.9 | 13.8 | 1.95 | |
| 90% | 4.2 | 4.1 | 43724 | 31.8 | 17.2 | 1.85 | |
| 100% | 4.1 | 5.4 | 46709 | 36.1 | 22.3 | 1.62 | |
| GF1219-3 (Gemfan, 3-blade) | 50% | 4.2 | 1.7 | 30266 | 18.9 | 7.1 | 2.66 |
| 60% | 4.2 | 2.1 | 36753 | 21.6 | 8.7 | 2.48 | |
| 70% | 4.2 | 2.5 | 39401 | 24.4 | 10.4 | 2.34 | |
| 80% | 4.2 | 2.9 | 40119 | 26.9 | 11.9 | 2.26 | |
| 90% | 4.2 | 3.4 | 47592 | 30.7 | 14.3 | 2.15 | |
| 100% | 4.2 | 4.4 | 54483 | 35.2 | 18.2 | 1.93 | |
| GF1220-4 (Gemfan, 4-blade) | 50% | 4.2 | 1.6 | 31919 | 16.9 | 6.8 | 2.49 |
| 60% | 4.2 | 2 | 34015 | 20.1 | 8.3 | 2.42 | |
| 70% | 4.2 | 2.3 | 30427 | 23 | 9.7 | 2.38 | |
| 80% | 4.2 | 2.7 | 42520 | 25.6 | 11.1 | 2.3 | |
| 90% | 4.2 | 3.1 | 49189 | 29.4 | 12.9 | 2.28 | |
| 100% | 4.2 | 3.9 | 57452 | 35 | 16.2 | 2.16 |
Source: T-Motor 25000KV specs and test
27000KV on 1S, 3.7 V1 prop
| Prop | Throttle | Voltage (V) | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|
| M12199-3 (T-Motor 31 mm, 3-blade) | 10% | 3.7 | 0.3 | 0.3 | 1 | 0.26 |
| 20% | 3.7 | 0.7 | 1.8 | 2.7 | 0.7 | |
| 30% | 3.7 | 1.2 | 6 | 4.3 | 1.38 | |
| 40% | 3.7 | 1.7 | 9.6 | 6.3 | 1.51 | |
| 50% | 3.7 | 2.2 | 13 | 8.3 | 1.57 | |
| 60% | 3.7 | 2.8 | 17.3 | 10.1 | 1.71 | |
| 70% | 3.7 | 3.2 | 20.8 | 11.8 | 1.77 | |
| 80% | 3.7 | 3.6 | 23.3 | 13.3 | 1.76 | |
| 90% | 3.7 | 4.2 | 25.9 | 15.2 | 1.71 | |
| 100% | 3.6 | 5.1 | 30.7 | 18.5 | 1.66 |
Source: T-Motor 27000KV specs and test
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, 10.6 mm across, with five spokes in the top, each forked at the rim. (T-Motor 25000KV specs and test)
- Shaft. 1 mm by T-Motor's drawing, standing 5 mm above the bell; the motor is 12.2 mm long overall. (T-Motor 25000KV specs and test)
- Magnets. N52 arc magnets forming 12 poles round a 9-slot stator (9N12P). (T-Hobby 22000KV page)
- Base. Three M1.4 holes on a 6.6 mm circle; leads 33.5 mm long with a JST 1.25 plug. (T-Motor 25000KV specs and test)
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 T-Motor’s published sizes: the 8 × 2 mm stator, 10.6 mm bell, 7.2 mm height, 1 mm shaft, 6.6 mm mounting circle and 9 teeth and 12 magnets. Anything T-Motor 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
- T-Motor: M0802 22000KV product page on its Tmotorhobby store (price, product photos). Retrieved Oct 19, 2026.
- T-Hobby (T-Motor's hobby brand): M0802 KV22000 product page (description; feature images, drawing, spec table and test report are images on the page). Retrieved Oct 19, 2026.
- T-Motor: M0802 22000KV drawing, spec table and test report, two images on the T-Hobby page (S2) starting with this one. Columns as T-Motor gives them: voltage, current, RPM, thrust in g, power, efficiency. Retrieved Oct 19, 2026.
- T-Motor: M0802 25000KV drawing, spec table and test report, two images on T-Hobby's 25000KV page (https://www.t-hobby.com/products/m0802-kv25000) starting with this one. Retrieved Oct 19, 2026.
- T-Motor: M0802 27000KV drawing, spec table and test report (image on T-Hobby's 27000KV page, https://www.t-hobby.com/products/tmotor-m0802-kv27000). T-Motor gives no RPM for this test. Retrieved Oct 19, 2026.
