GEPRC EM2807

What it pulls

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

What you get for $19.99

• 2.4 kg on 6S

  It pulled 2,393 g at full throttle on a Gemfan 7535X3 at about 23.6 V, drawing 44.1 A, and 2,390 g on a Gemfan 7037X3 at 41.2 A.

  Source: GEPRC datasheet

• M5 steel shaft

  A 5 mm steel shaft with an M5 thread, standing 16 mm above the bell, with an M5 flange nut in the box.

  Source: GEPRC product page, GEPRC spec image, GEPRC drawing

• 19 × 19 mm base

  Four M3 holes on a 19 mm circle, with 260 mm 18 AWG leads.

  Source: GEPRC product page, GEPRC drawing

What to pair it with

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

ESC

GEPRC recommends a 50–60 A ESC and gives a 47 A peak current; its datasheet peaks at 44.1 A. (GEPRC product page, GEPRC datasheet)

Props

6 to 8-inch. GEPRC tested it on a Gemfan 7037X3, a Hoprop 7x3.7x3 and a Gemfan 7535X3, which all pulled close to 2.4 kg at full throttle. (GEPRC product page, GEPRC datasheet)

Battery

6S (25.2 V). (GEPRC product page, GEPRC spec image)

Frame

Four M3 holes on a 19 × 19 mm pattern, with M3×9 screws in the box; GEPRC made it for 7 to 8-inch long-range frames. (GEPRC product page, GEPRC drawing)

Where to buy

• GEPRCthe maker’s store
  $19.99seen 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 GEPRC’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:

• Shaft. A high-strength 5 mm steel shaft with an M5 thread. (GEPRC product page, GEPRC drawing)
• Stator. 12N14P, with single-strand copper windings and N52H magnets. (GEPRC product page, GEPRC spec image)
• Bearings. NSK/NMB bearings, as GEPRC gives them. (GEPRC product page, GEPRC spec image)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1350KV 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 GEPRC’s published sizes: the 28 × 7 mm stator, 33 mm bell, 20.1 mm height, 5 mm shaft, 19 mm mounting circle and 12 teeth and 14 magnets. Anything GEPRC 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. GEPRC: EM2807 1350KV Motor (product page, with the spec list). Retrieved Oct 19, 2026.
2. GEPRC: EM2807 specifications (image on the product page). Retrieved Oct 19, 2026.
3. GEPRC: EM2807 product drawing (image on the product page). Retrieved Oct 19, 2026.
4. GEPRC: EM2807 1350KV datasheet on Gemfan 7037X3, Hoprop 7x3.7x3 and Gemfan 7535X3 props, 20–100% throttle at about 24 V (image on the product page). Each row’s voltage is as measured; the table’s voltage is its 20% row. GEPRC gives one motor temperature per prop, without saying after how long.. Retrieved Oct 19, 2026.
5. GEPRC: EM2807 product photo (first gallery image). Retrieved Oct 19, 2026.
6. GEPRC: EM2807 from above, showing the five-spoke top (gallery image). Retrieved Oct 19, 2026.