BrotherHobby GOM 2207.5

What it pulls

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

What you get for $24.99

• About 2 kg on 6S

  On BrotherHobby’s 24 V bench the version headed 1900KV pulled 2,042 g at full throttle on an HQ 5.1 × 4.1 × 3, drawing 48.9 A; the 1750KV pulled 1,798 g at 41.2 A.

  Source: BrotherHobby load test data

• Made with Drone RC Land

  The motor is printed "Developed by Drone RC Land & BrotherHobby".

  Source: BrotherHobby setup suggestions

• Hollow titanium shaft

  A hollow titanium-alloy shaft with an M5 thread, in a 7075 aluminium bell cap and base.

  Source: BrotherHobby spec sheet, BrotherHobby product page

• NMB 9 × 4 × 4 bearings

  Japanese NMB bearings, 9 × 4 × 4 mm, with N52H arc magnets and wire rated to 260 °C.

  Source: BrotherHobby product page

What to pair it with

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

ESC

BrotherHobby suggests a 6S 45 A ESC for the 1750KV and a 6S 50 A for the version it heads 1900KV; its bench peaks were 41.2 A and 48.9 A. (BrotherHobby setup suggestions, BrotherHobby load test data)

Props

5.1-inch tri-blades: 1,798 g (1750KV) and 2,042 g (1900KV table) on an HQ 5.1 × 4.1 × 3 at full throttle on 24 V. The higher KV ran much hotter: 147 °C in the windings after two minutes at full throttle, against 93.7 °C. (BrotherHobby load test data)

Battery

6S for the 1750KV and 1920KV; BrotherHobby rates the motor for 4S–6S. (BrotherHobby product page, BrotherHobby setup suggestions)

Frame

Four M3 holes on a 16 mm circle (16 × 16 mm). Four M3 screws and an M5 nut come in the box. (BrotherHobby product page, BrotherHobby spec sheet, BrotherHobby load test data)

Where to buy

• BrotherHobbythe maker’s store; same price for every KV
  $24.99seen Oct 19, 2026
  Visit
• GetFPVchoose the 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 BrotherHobby’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. 7075 aluminium bell cap, φ28.5 mm. (BrotherHobby product page)
• Shaft. Hollow titanium alloy, 5 mm with an M5 thread, standing 14 mm above the bell. (BrotherHobby spec sheet)
• Magnets. N52H arc magnets, 14 poles. (BrotherHobby product page)
• Stator. 22 × 7.5 mm with 12 slots, in 0.15 mm Nippon Steel silicon steel. (BrotherHobby product page)
• Bearings. NMB, 9 × 4 × 4 mm. (BrotherHobby product page)
• Base. 7075 aluminium, with four M3 holes on a 16 mm circle; 20 AWG leads, 16 cm. (BrotherHobby product page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1920KV 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 BrotherHobby’s published sizes: the 22 × 7.5 mm stator, 28.5 mm bell, 19.9 mm height, 5 mm shaft, 16 mm mounting circle and 12 teeth and 14 magnets. Anything BrotherHobby 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. BrotherHobby: GOM 2207.5 Motor (product page on BrotherHobby’s store, with its spec list and photos). Retrieved Oct 19, 2026.
2. BrotherHobby: GOM 2207.5 specification and drawing (image on the product page). Retrieved Oct 19, 2026.
3. BrotherHobby: GOM 2207.5 load test data on an HQ 5.1 × 4.1 × 3 at 24 V, with the packing list (image on the product page). The second table is headed 1900KV, a KV the page does not sell; it is listed here under the 1920KV. Copper temperatures are after two minutes at full throttle.. Retrieved Oct 19, 2026.
4. BrotherHobby: GOM 2207.5 setup suggestions for the 1750KV and 1900KV, with prop, voltage and ESC; the photo shows the motor printed "1920KV, Developed by Drone RC Land & BrotherHobby" (image on the product page). Retrieved Oct 19, 2026.