Xnova 1804

What it pulls

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

What you get

• Light

  15.1–16 g with 10 cm of wire, depending on the KV.

  Source: Xnova basic data

• For cinewhoops

  Xnova designed the series for cinewhoop HD filming and lists low cogging torque and smooth running.

  Source: Xnova product page

• Smooth and balanced

  Xnova says the motors are precisely balanced and fully tested.

  Source: Xnova product page

• Bench numbers

  The 3100KV pulls 538 g on a Gemfan 5 × 3 two-blade at 11.1 V and 638 g on an HQ 4 × 4.3 three-blade at 14.8 V; the 2800KV pulls 770 g on a Gemfan 5125 at 14.8 V.

  Source: Xnova specifications page

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 run from 14.9 A (2400KV, 18.5 V) to 25.2 A (3500KV on a DYS 4 × 4.5 three-blade, 14.8 V). (Xnova specifications page, Xnova 3500KV prop data)

Props

Xnova tested 3-, 4- and 5-inch props: Gemfan 5 × 3 and 5125, HQ 4 × 4.3 and 3 × 3, DYS 4040, 4045 and 3030. Props fit the M5 shaft. (Xnova specifications page, Xnova 3500KV prop data)

Battery

4–6S for the 2400KV and 2800KV, 3–4S for the 3100KV and 3500KV. (Xnova basic data)

Frame

Four M2 screws, opposite holes 12 mm apart (the 12 × 12 pattern). (Xnova drawing)

Where to buy

• Pyrodroneset of 4, choose KV
  price on the store’s page
  Visit
• Pyrodrone1 motor, choose KV
  price on the store’s page
  Visit

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

Full specs

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.

Inside the motor

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

• Bell. A red anodised top with six spokes over a black bell. (Xnova product photo)
• Shaft. M5 thread, standing 14 mm above the bell. (Xnova drawing)
• Base. Four M2 holes, opposite holes 12 mm apart. (Xnova drawing)
• Leads. Silicone wire, 10 cm. (Xnova basic data)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 3100KV 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.

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 18 × 4 mm stator, 23 mm bell, 15.1 mm height, 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

1. Xnova: Xnova 1804 FPV motor series (Lightning 1804; product page with the basic data table). Retrieved Oct 19, 2026.
2. Xnova: Lightning RM1804 basic data (no-load current, weight, battery and resistance per KV; image on the product page, dated 2021-02). Retrieved Oct 19, 2026.
3. Xnova: Lightning 1804 specifications page (propeller data for 2400KV, 2800KV, 3100KV and 3500KV, and the outline drawing). Volts are printed as "Max 11.1" etc.; power is that voltage times the current. The 2400KV's second prop is printed "HQ4*4.3*4 tri".. Retrieved Oct 19, 2026.
4. Xnova: Lightning 1804 outline drawing (image on the specifications pages). Retrieved Oct 19, 2026.
5. Xnova: Lightning RM1804-3500KV propeller data, eight props (image on Xnova's RM1804-3500KV specifications page). Retrieved Oct 19, 2026.
6. Xnova: Lightning 1804 product photo (series image on the product pages), used for finish. Retrieved Oct 19, 2026.