1S tiny whoop motor
WeBleedFPV Screamers 0702
WeBleedFPV's 0702 whoop motor: 32,500KV, with a knurled internal shaft in 1 mm or 1.5 mm, sold in sets of four.
- 0702 whoop builds
- Props for a 1 mm or a 1.5 mm shaft
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 WeBleedFPV’s published sizes, not its exact design. No-load speed is KV × 3.7 V, a nominal pack for this version. WeBleedFPV publishes no bench data for it.
from $42.99a motor at WeBleedFPV
A set of four: $171.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What you get for $42.99
Knurled shaft
WeBleedFPV knurls the shaft inside the motor, which it says helps cut shaft slippage and the desyncs that come with it.
Source: WeBleedFPV product page (1 mm)
32,500KV
One KV, 32,500KV, sold in sets of four.
Source: WeBleedFPV product page (1 mm)
Two shaft sizes
Sold with a 1 mm or a 1.5 mm shaft.
Source: WeBleedFPV product page (1.5 mm)
What to pair it with
Our reading of WeBleedFPV’s numbers, so your build matches what the motor was tested with.
- Props
- Props for a 1 mm or a 1.5 mm shaft, to match the set you buy. (WeBleedFPV product page (1 mm), WeBleedFPV product page (1.5 mm))
Where to buy
- WeBleedFPVthe maker's store; set of 4, 1 mm shaft$42.99seen Oct 19, 2026Visit
- WeBleedFPVset of 4, 1.5 mm shaft$42.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 32,500 rpm/V | WeBleedFPV product page (1 mm) |
| Stator | 7 × 2 mm (0702) (WeBleedFPV gives the size as 0702) | WeBleedFPV product page (1 mm) |
| Shaft | 1 mm or 1.5 mm (sold as separate sets), knurled inside the motor (the 1.5 mm sets are on a second WeBleedFPV page) | WeBleedFPV product page (1 mm) |
| In the box | 4 motors per set | WeBleedFPV product page (1 mm) |
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Shaft. Knurled where it sits inside the motor. (WeBleedFPV product page (1 mm))
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 32500KV 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 | 481,000 | 48,100 Hz | 288,600 |
| 4S full | 16.8 | 546,000 | 54,600 Hz | 327,600 |
| 6S nominal | 22.2 | 721,500 | 72,150 Hz | 432,900 |
| 6S full | 25.2 | 819,000 | 81,900 Hz | 491,400 |
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 WeBleedFPV’s published sizes: the 0702 stator. Anything WeBleedFPV 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. There are no logos or markings: it is our drawing, not the maker’s.
Sources
- WeBleedFPV: weBLEEDfpv 0702 32,500kv SCREAMERS w/Knurled Shaft Design, set of 4 motors, 1 mm shaft (product page on WeBleedFPV's own store). Retrieved Oct 19, 2026.
- WeBleedFPV: weBLEEDfpv (1.5MM) 0702 32,500kv SCREAMERS w/Knurled Shaft Design, set of 4 motors (product page on WeBleedFPV's own store). Retrieved Oct 19, 2026.
- WeBleedFPV: 0702 1.5MM bell housing only, singles (product page; vendor shown as Happymodel). Retrieved Oct 19, 2026.
- WeBleedFPV: store search results for "screamer" (JSON), whose product tags link the Screamers to HappyModel's SE0702. Retrieved Oct 19, 2026.