BrotherHobby Avenger 2812 V2

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

• 3.5 kg on a 9-inch two-blade

  On BrotherHobby’s 24 V bench the 1115KV pulled 3,520 g at full throttle on a 9 × 4.7 carbon two-blade, drawing 54.5 A; the 900KV pulled 2,750 g on the same prop at 33.8 A.

  Source: BrotherHobby 1115KV test report, BrotherHobby 900KV test reports

• 3 kg on an 8-inch tri-blade

  The 960KV pulled 3,041 g on an HQ 8 × 4.5 × 3 at 23.7 V, drawing 49.2 A.

  Source: BrotherHobby 960KV test report

• Hollow titanium shaft, NMB bearings

  A hollow titanium-alloy shaft with an M5 thread, Japanese NMB 12 × 6 × 4 mm bearings and N52H arc magnets.

  Source: BrotherHobby product page, BrotherHobby spec image

What to pair it with

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

ESC

BrotherHobby lists a 6S 50 A ESC for the 900KV on a 9-inch tri-blade and the 960KV on an 8-inch, 6S 40 A for the 900KV and 6S 60 A for the 1115KV on a 9-inch two-blade; the measured peaks were 49.2 A (960KV), 33.8 A and 54.5 A. (BrotherHobby 900KV test reports, BrotherHobby 960KV test report, BrotherHobby 1115KV test report)

Props

BrotherHobby tested the 900KV on an HQ 9 × 5 × 3 tri-blade (2,717 g at 90% throttle) and a 9 × 4.7 carbon two-blade (2,750 g at full throttle), the 960KV on an HQ 8 × 4.5 × 3 (3,041 g) and the 1115KV on the 9 × 4.7 two-blade (3,520 g). (BrotherHobby 900KV test reports, BrotherHobby 960KV test report, BrotherHobby 1115KV test report)

Battery

6S for all three KVs in BrotherHobby’s tests. (BrotherHobby 900KV test reports, BrotherHobby 960KV test report, BrotherHobby 1115KV test report)

Frame

Four M3 holes on a 19 mm circle (19 × 19 mm). (BrotherHobby product page, BrotherHobby 900KV test reports)

Where to buy

• BrotherHobbythe maker’s store; $32.99, down from $37.99, for any KV; the 1115KV was out of stock
  $32.99seen Oct 19, 2026
  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, φ33.9 mm, with three arms round a large textured hub. (BrotherHobby product page, BrotherHobby 900KV test reports)
• Shaft. Hollow titanium alloy, 5 mm with an M5 thread, standing 16 mm above the bell. (BrotherHobby product page, BrotherHobby 900KV test reports)
• Magnets. N52H arc magnets, 14 poles. (BrotherHobby product page)
• Stator. 28 × 12 mm with 12 slots, in 0.2 mm Kawasaki silicon steel. (BrotherHobby product page, BrotherHobby 900KV test reports)
• Bearings. NMB, 12 × 6 × 4 mm. (BrotherHobby product page)
• Base. 7075 aluminium, 3.5 mm thick, with four M3 holes on a 19 mm circle and 18 AWG leads 250 mm long. (BrotherHobby product page, BrotherHobby 900KV test reports)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 900KV 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 28 × 12 mm stator, 33.9 mm bell, 28.5 mm height, 5 mm shaft, 19 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: Avenger 2812 V2 Motor(CW) (product page on BrotherHobby’s store, with its spec list, photos and Tech Specs tab). Retrieved Oct 19, 2026.
2. BrotherHobby: Avenger 2812 V2 spec list and outline drawings (image on the product page). It gives 900KV and 1115KV and 4S–6S.. Retrieved Oct 19, 2026.
3. BrotherHobby: two Avenger V2 2812 900KV test reports from BrotherHobby’s 2018 bench, one dated 2019-08-13 (HQ 9 × 5 × 3 at 24 V) and one undated (9 × 4.7 carbon two-blade at 24 V), with drawing and spec tables (image on the Tech Specs tab). Copper temperatures in the V2 reports are after one minute at full throttle.. Retrieved Oct 19, 2026.
4. BrotherHobby: Avenger V2 2812 960KV test report dated 2019-08-13, 2018 bench, HQ 8 × 4.5 × 3 at 24 V, with drawing and spec table (image on the Tech Specs tab). Shown without its throttle column (see the model notes).. Retrieved Oct 19, 2026.
5. BrotherHobby: Avenger V2 2812 1115KV test report dated 2018-08-14, 2018 bench, 9 × 4.7 carbon two-blade at 24 V, with drawing and spec table (image on the Tech Specs tab). Retrieved Oct 19, 2026.