3-inch cinewhoop and 4-inch FPV motor
FPVCycle 23mm Short
FPVCycle’s cinewhoop motor: a 23 mm stator a little over 3 mm tall, 3450KV for 3-inch ducted builds on 3S–4S or 2350KV for 6S, about 17 g.
- 3-inch ducted cinewhoops
- 4-inch builds
- light 5-inch (2350KV on 3S–4S)
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 23mm motor drawn from FPVCycle’s published sizes, not its exact design. No-load speed is KV × 14.8 V, a nominal pack for this version. FPVCycle publishes no bench data for it.
- Weight
- 17 g
- about 17 g with about 80 mm of lead; about 20 g with the prop adapter, nut and 240 mm of 24 AWG lead
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What you get
Built for cinewhoops
FPVCycle designed it for 3-inch ducted whoops, any 4-inch craft and light 5-inch builds.
Source: FPVCycle product page
23 mm stator
The 23 mm diameter shifts the torque curve for easier throttle control than FPVCycle’s earlier 2203 and 2204, and the motor mixes with them on one craft at a similar KV.
M3 shaft with M5 adapter
An M3 titanium prop shaft with an M5 adapter; FPVCycle says the small M3 nut is easier to handle inside a duct.
Screw-retained bell
The updated version has a screw-retained bell, a new prop mount, a tweaked stator and less weight.
Source: FPVCycle product page
What to pair it with
Our reading of FPVCycle’s numbers, so your build matches what the motor was tested with.
- Props
- FPVCycle matches it with Gemfan’s 75 mm cinewhoop prop in its CineSplore, the Gemfan 4023 on 4-inch frames and the Gemfan 5125 on light 5-inch frames. (FPVCycle product page)
- Battery
- 3450KV: 3S 1000–1500 mAh or 4S 1100–1300 mAh on a 3-inch cinewhoop. 2350KV: 5S 1100–1300 mAh or 6S 850–1000 mAh on a 3-inch cinewhoop, 4S 1100–1300 mAh on a 5-inch open prop. (FPVCycle product page)
- Frame
- M2 screws on a 12 × 12 mm pattern; the base is not flush mount. (FPVCycle product page)
Where to buy
- FPVCyclethe maker’s store; both KVs listed as sold out$19.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 3,450 rpm/V (also 2350KV) | FPVCycle product page |
| Stator | 23 mm diameter, more than 3 mm tall | FPVCycle product page |
| Battery | 3S–4S LiPo (3450KV); 3S–6S (2350KV) (from FPVCycle’s suggested setups) | FPVCycle product page, FPVCycle motor guide |
| Weight | 17 g (about 17 g with about 80 mm of lead; about 20 g with the prop adapter, nut and 240 mm of 24 AWG lead) | FPVCycle product page |
| Shaft | M3 grade 5 titanium prop shaft with an M5 adapter; 3 mm grade 5 titanium internal shaft | FPVCycle product page |
| Mounting | M2 screws on a 12 × 12 mm pattern (not flush mount) | FPVCycle product page |
| Bell | 7075-T6 aluminium, held on by a screw | FPVCycle product page |
| Magnets | N52SH arc magnets | FPVCycle product page |
| Bearings | Japan ISC custom 683ZZ, 3 × 8 × 4 mm | FPVCycle product page |
| Winding | Single-wrap oxygen-free copper, 260 °C enamel | FPVCycle product page |
| Leads | 24 AWG (FPVCycle weighs it with 240 mm leads) | FPVCycle 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:
- Bell. 7075-T6 aluminium, retained by a screw. (FPVCycle product page)
- Shaft. 3 mm grade 5 titanium internal shaft; M3 titanium prop shaft with an M5 adapter. (FPVCycle product page)
- Magnets. N52SH arc magnets. (FPVCycle product page)
- Stator. 23 mm, a little over 3 mm tall, 0.15 mm Kawasaki laminations, single-wrap oxygen-free copper. (FPVCycle product page)
- Bearings. Japan ISC custom 683ZZ, 3 × 8 × 4 mm. (FPVCycle product page)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 3450KV 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 | 51,060 | 5,957 Hz | 35,742 |
| 4S full | 16.8 | 57,960 | 6,762 Hz | 40,572 |
| 6S nominal | 22.2 | 76,590 | 8,936 Hz | 53,613 |
| 6S full | 25.2 | 86,940 | 10,143 Hz | 60,858 |
A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.
About the 3D model
A generic outrunner drawn from FPVCycle’s published sizes: the 23mm stator, 3 mm shaft and 12 mm mounting circle. Anything FPVCycle 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.