1S tiny whoop motor
Tiny Whoop Calliope 0802
A 25,000KV 0802 that Tiny Whoop tunes for freestyle: 1.85 g with leads and plug, on a 1 mm shaft keyed into the bell so it can't slip.
- Whoop freestyle
- Props for 1 mm shafts
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 Tiny Whoop’s published sizes, not its exact design. No-load speed is KV × 3.7 V, a nominal pack for this version. Tiny Whoop publishes no bench data for it.
- Weight
- 1.854 g
- with wires and plug; 1.6576 g without wires (Tiny Whoop's figures for its Project Topspin 802 motors, the second shown on its scale)
from $45.99a motor at Tiny Whoop
A set of four: $183.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What you get for $45.99
Freestyle balance
Tiny Whoop says 25,000KV is a popular speed for freestylers, with a balance of power and throttle resolution that favours freestyle.
Source: Tiny Whoop product page
Locking shaft
A keyed shaft fits a matching keyhole in the bell, which Tiny Whoop says stops the shaft slipping.
Source: Tiny Whoop product page
1.66 g without wires
Tiny Whoop's scale shows 1.6576 g for one motor without wires; it lists 1.8541 g with wires and plug.
Direction on the bell
The curved spokes on the top sweep one way on clockwise motors and the other on counter-clockwise ones.
Source: Tiny Whoop bell drawing
What to pair it with
Our reading of Tiny Whoop’s numbers, so your build matches what the motor was tested with.
- Props
- Tiny Whoop says it fits all standard props for a 1 mm shaft. (Tiny Whoop product page)
- Frame
- Three-hole base. Tiny Whoop sells plastic risers for Project Topspin 702 and 802 motors, for frames where the props should sit higher in the ducts. (Tiny Whoop spacer page)
- ESC
- Tiny Whoop publishes no current draw or bench data for this motor. (Tiny Whoop product page)
Where to buy
- Tiny Whoopthe maker's store; set of 4 (2 CW, 2 CCW)$45.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 25,000 rpm/V (the one KV of the Calliope Edition) | Tiny Whoop product page |
| Stator | 8 × 2 mm (0802) (size from the 802 in Tiny Whoop's name) | Tiny Whoop product page |
| Weight | 1.854 g (with wires and plug; 1.6576 g without wires (Tiny Whoop's figures for its Project Topspin 802 motors, the second shown on its scale)) | Tiny Whoop product page |
| Shaft | 1 mm locking shaft, keyed into a matching keyhole in the bell | Tiny Whoop product page |
| Mounting | 3 screw holes (from the three-hole spacers Tiny Whoop sells for its Project Topspin 702 and 802 motors; no hole size or spacing is published) | Tiny Whoop spacer page |
| Bell | Brushed silver with a purple accent; curved spokes on the top show which way the motor turns | Tiny Whoop product page, Tiny Whoop bell drawing |
| Leads | 3 black leads ending in a white 3-pin plug (read off the product photo; the plug type isn't named) | Tiny Whoop product photo |
| In the box | 2 clockwise and 2 counter-clockwise motors, with metal motor screws | Tiny Whoop product page |
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Shaft. 1 mm, keyed into the bell like a key in a lock, Tiny Whoop's "locking shaft". (Tiny Whoop product page)
- Bell. Soft brushed silver with a subtle purple accent, in Tiny Whoop's words; the purple shows on the cut edges of the top's six curved spokes. (Tiny Whoop product page, Tiny Whoop close-up photo)
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 Tiny Whoop’s published sizes: the 8 × 2 mm stator and 1 mm shaft. Anything Tiny Whoop 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
- Tiny Whoop: 802 25KKV Calliope Edition - Project Topspin Tiny Whoop Motors (product page on Tiny Whoop's own store). Retrieved Oct 19, 2026.
- Tiny Whoop: Calliope Edition main product photo, four motors with screws (image on the product page), used for finish. Retrieved Oct 19, 2026.
- Tiny Whoop: one Project Topspin 802 motor without wires on a milligram scale, 1.6576 g (image on the product page). Retrieved Oct 19, 2026.
- Tiny Whoop: close-up photo of one Calliope motor (image on the product page). Retrieved Oct 19, 2026.
- Tiny Whoop: "Motor bell indicates motor direction" drawing of the Project Topspin bell top, clockwise and counter-clockwise (image on the product page). Retrieved Oct 19, 2026.
- Tiny Whoop: Motor Spacers/Risers for 702 and 802 motors (product page; three-hole plastic spacers made for Project Topspin motors). Retrieved Oct 19, 2026.
