2S–3S toothpick and whoop motor
T-Motor F1103-II
T-Motor's 8000KV 1103 for 2S–3S toothpicks, sold as the replacement motor for its 80 mm TRON 80 HD whoop.
- 2S–3S toothpicks
- TRON 80 HD whoop (replacement motor)
- 40 mm (1.6-inch) whoop props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 1103 motor drawn from T-Motor’s published sizes, not its exact design. No-load speed is KV × 11.1 V, a nominal pack for this version. T-Motor publishes no bench data for it.
from $11.90a motor at T-Motor
A set of four: $47.60
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What you get for $11.90
Spare for the TRON 80 HD
T-Motor sells it as the replacement motor for its TRON 80 HD whoop, an 80 mm 2–3S whoop on 40 mm props.
For 2S–3S toothpicks
T-Motor says it was designed to fit 2–3S toothpick builds, and calls it powerful, smooth and quick.
Source: T-Motor product page
What to pair it with
Our reading of T-Motor’s numbers, so your build matches what the motor was tested with.
- ESC
- On the TRON 80 HD it runs from T-Motor's F4 HD AIO, a 2–3S 13 A board. (T-Motor TRON 80 HD page)
- Props
- 40 mm (1.6-inch) props on the TRON 80 HD. (T-Motor TRON 80 HD page)
- Battery
- 2S–3S. (T-Motor product page, T-Motor TRON 80 HD page)
- Frame
- 2–3S toothpicks, per T-Motor, and its 80 mm TRON 80 HD whoop. (T-Motor product page, T-Motor TRON 80 HD page)
Where to buy
- T-Motorthe maker's store (Tmotorhobby)$11.90seen Oct 19, 2026Visit
- T-HobbyT-Motor's hobby-brand store$11.90seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 8,000 rpm/V (the only version) | T-Motor product page, T-Hobby product page |
| Stator | 11 × 3 mm (1103) | T-Motor product page |
| Battery | 2S–3S LiPo | T-Motor product page, T-Motor TRON 80 HD page |
| Shaft | 1.5 mm (from the TRON 80 HD's spec list, which names its motor as an F1103 8000KV with a 1.5 mm shaft) | T-Motor TRON 80 HD page |
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. Dark grey, with windows in the top round a centre carrying four holes about the shaft. (T-Motor product page)
- Shaft. 1.5 mm, per the TRON 80 HD's spec list. (T-Motor TRON 80 HD page)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 8000KV 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 | 118,400 | 11,840 Hz | 71,040 |
| 4S full | 16.8 | 134,400 | 13,440 Hz | 80,640 |
| 6S nominal | 22.2 | 177,600 | 17,760 Hz | 106,560 |
| 6S full | 25.2 | 201,600 | 20,160 Hz | 120,960 |
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 11 × 3 mm stator and 1.5 mm shaft. 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: F1103-II for TRON 80 HD WHOOP 8000KV Brushless Micro Motor, product page on its Tmotorhobby store (description, product photos, price; no drawing or spec table). Retrieved Oct 19, 2026.
- T-Hobby (T-Motor's hobby brand): F1103 II for TRON 80 HD WHOOP Brushless Micro Motor product page (KV, price, product photos). Retrieved Oct 19, 2026.
- T-Motor: TRON 80 Whoop HD product page on its Tmotorhobby store; its specifications image lists the motor as F1103 8000KV with a 1.5 mm shaft, 40 mm (1.6-inch) props, 2–3S input and T-Motor's F4 HD 2–3S 13A AIO. Retrieved Oct 19, 2026.