4–5-inch toothpick FPV motor

Xnova T2203.5

Xnova's T-mount 2203.5 for toothpicks, 18.5 g with its wires; the 2800KV pulls 1035 g on a Gemfan 5125 at 14.8 V in Xnova's test.

4- to 5-inch toothpick builds
3S to 6S, by KV: 1800KV on 5–6S, 2400KV on 4–6S, 2800KV on 3–6S
T-mount props

Drawing the 3D model…

Throttle60%

The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 2203.5 motor drawn from Xnova’s published sizes, not its exact design. Thrust, current and power are Xnova’s bench figures for the GF5125 prop at 14.8 V, read straight across between its throttle steps. Its data starts at 50% throttle.

Version

1800KV5S–6S2400KV4S–6S2800KV3S–6S

Xnova tested it on 14.8 V.

Max thrust: 1,035 g; GF5125 prop, 14.8 V
Weight: 18.5 g; with 16 cm wires; the same for all three KVs
Peak current: 30.0 A; full throttle
Max power: 444 W; full throttle

from $25.99a motor at Pyrodrone

A set of four: $103.96

Price seen Oct 19, 2026. Plain links: we earn nothing from them.

What it pulls

Xnova’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

At 60% with the GF5125: 510 g of thrust, 12.4 A, 184 W, 2.78 g per watt.

On your quad

All-up weight650 g

6.4 : 1

Thrust to weight at full throttle: four motors pull 4,140 g with the GF5125 at 14.8 V.

At 60% throttle they pull 2,040 g, 3.1 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 $25.99

Three KVs
1800KV for 5–6S, 2400KV for 4–6S and 2800KV for 3–6S, each 18.5 g with 16 cm wires.
Source: Xnova 2400KV sheet
T-mount top
Props bolt to four M2 holes on a 5 mm circle in the bell's top, around a 1.5 mm shaft.
Source: Xnova drawing
Smooth and balanced
Xnova lists low cogging torque and smooth running, and says the motors are precisely balanced and fully tested.
Source: Xnova product page
Bench numbers
On a Gemfan 5125 the 2800KV pulls 1035 g at 30 A on 14.8 V, and the 1800KV 940 g at 16.6 A on 22.2 V.
Source: Xnova 2800KV sheet, Xnova 1800KV sheet

What to pair it with

Our reading of Xnova’s numbers, so your build matches what the motor was tested with.

ESC: Full-throttle currents on Xnova's bench: 16.6 A for the 1800KV (Gemfan 5125, 22.2 V), 22.4 A and 25.0 A for the 2400KV (Gemfan 4024 at 22.2 V, Gemfan 5152 at 18.5 V), 30 A for the 2800KV (Gemfan 5125, 14.8 V). (Xnova 2400KV sheet, Xnova 1800KV sheet, Xnova 2800KV sheet)
Props: Xnova tested the Gemfan 5125 on the 1800KV and 2800KV, and a Gemfan 4024 and 5152 on the 2400KV. Props fit the T-mount top. (Xnova 2400KV sheet, Xnova 1800KV sheet, Xnova 2800KV sheet, Xnova drawing)
Battery: 5–6S (1800KV), 4–6S (2400KV), 3–6S (2800KV). (Xnova 2400KV sheet)
Frame: Four M2 screws on a 12 mm circle (the 12 × 12 pattern). (Xnova drawing)

Where to buy

Pyrodrone2800KV
$25.99seen Oct 19, 2026
Visit
Pyrodrone2400KV
$25.99seen Oct 19, 2026
Visit
Pyrodrone1800KV
$25.99seen Oct 19, 2026
Visit
Unmanned Tech1800KV or 2400KV; 2800KV out of stock
price on the store’s page
Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Spec	Value	Source
KV	2,800 rpm/V (also 1800KV and 2400KV)	Xnova 2400KV sheet
Stator	22 × 3.5 mm (2203.5) (from the size in Xnova's name)	Xnova product page
Battery	3S–6S LiPo (for the 2800KV; 4–6S (2400KV), 5–6S (1800KV))	Xnova 2400KV sheet
Weight	18.5 g (with 16 cm wires; the same for all three KVs)	Xnova 2400KV sheet
Dimensions	φ27 × 18.1 mm (with shaft); body 14.5 mm tall	Xnova drawing
Shaft	1.5 mm, standing 3.6 mm above the bell (18.1 mm overall less the 14.5 mm body); props bolt on with 4 × M2 on a 5 mm circle in the bell's top (T-mount)	Xnova drawing
Mounting	4 × M2 on a 12 mm circle (12 × 12)	Xnova drawing
Resistance	70 mΩ (110 mΩ (2400KV), 180 mΩ (1800KV))	Xnova 2400KV sheet
No-load current	1.1 A (at 10 V; 0.9 A (2400KV), 0.5 A (1800KV))	Xnova 2400KV sheet
Peak current	30 A (100% throttle, Gemfan 5125, 14.8 V; 25.0 A for the 2400KV (Gemfan 5152, 18.5 V), 16.6 A for the 1800KV (Gemfan 5125, 22.2 V))	Xnova 2800KV sheet
Max power	444 W (same test; 368.52 W for the 1800KV at 22.2 V)	Xnova 2800KV sheet
Leads	16 cm	Xnova 2400KV sheet

Bench data

Redrawn from Xnova’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.

1800KV on 5S–6S, 22.2 V1 prop

Prop	Throttle	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)
GF5125 (Gemfan 5125)	50%	5.3	382	117.66	3.25
	60%	6.7	459	148.74	3.09
	70%	8.3	550	184.26	2.98
	80%	11.1	670	246.42	2.72
	90%	14.6	840	324.12	2.59
	100%	16.6	940	368.52	2.55

Source: Xnova 1800KV sheet

2400KV on 4S–6S2 props

Prop	Throttle	Current (A)	Thrust (g)
GF5152 (Gemfan 5152)at 18.5 V	50%	8	437
	60%	10.4	522
	70%	12.4	608
	80%	16.8	770
	90%	22.2	956
	100%	25	1,040
GF4024 (Gemfan 4024)at 22.2 V	50%	8.5	408
	60%	11.3	438
	70%	14.1	476
	80%	16.9	552
	90%	20.3	620
	100%	22.4	662

Source: Xnova 2400KV sheet

2800KV on 3S–6S, 14.8 V1 prop

Prop	Throttle	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)
GF5125 (Gemfan 5125)	50%	9.8	425	145.04	2.93
	60%	12.4	510	183.52	2.78
	70%	15	592	222	2.67
	80%	20.1	750	297.48	2.52
	90%	26	910	384.8	2.36
	100%	30	1,035	444	2.33

Source: Xnova 2800KV sheet

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

Bell. Black, with a red top. (Xnova product photo)
Shaft. 1.5 mm, standing 3.6 mm above the bell; props bolt to four M2 holes on a 5 mm circle around it (T-mount). (Xnova drawing)
Base. Four M2 holes on a 12 mm circle. (Xnova drawing)
Leads. 16 cm. (Xnova 2400KV sheet)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 2800KV 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	41,440	4,835 Hz	29,008
4S full	16.8	47,040	5,488 Hz	32,928
6S nominal	22.2	62,160	7,252 Hz	43,512
6S full	25.2	70,560	8,232 Hz	49,392

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 Xnova’s published sizes: the 22 × 3.5 mm stator, 27 mm bell, 14.5 mm height, 1.5 mm shaft and 12 mm mounting circle. Anything Xnova 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

Xnova: NEW! Xnova T2203.5 FPV racing series. 2400kv_1800KV_2800kv (product page). Retrieved Oct 19, 2026.
Xnova: T2203.5-2400Kv data sheet, dated 2025-7-04 (the T2203.5 data list for all three KVs and the 2400KV's bench tables; image on the product page). Its Watts and Eff columns are left out: on every row the watts equal the current times 14.8 V, not the 22.2 V and 18.5 V the tables are labelled with.. Retrieved Oct 19, 2026.
Xnova: T2203.5-1800Kv data sheet (image on the product page). Retrieved Oct 19, 2026.
Xnova: T2203.5-2800Kv data sheet (image on the product page). Retrieved Oct 19, 2026.
Xnova: T2203.5 outline drawing (image on the product page). Retrieved Oct 19, 2026.
Xnova: T2203.5 2800KV product photo (image on the product page), used for finish. Retrieved Oct 19, 2026.
Xnova: top-view photo of the T-series 22-size motor (image on the product page; the T2204 page shows the same photo). Retrieved Oct 19, 2026.
Xnova: bottom-view photo of the T-series 22-size motor (image on the product page; the T2204 page shows the same photo). Retrieved Oct 19, 2026.