GEPRC GR2004

What you get for $19.99

• Over 1 kg on 6S

  The 1750KV reached 1,044 g on an HQ T5x3 two-blade at 24 V, drawing 18.42 A (441.5 W), the top row of GEPRC’s table.

  Source: GEPRC drawing and data table

• Two bearings, balanced

  GEPRC says each motor is dynamically balanced and uses a dual-bearing design.

  Source: GEPRC product page

• Shaft by KV

  The 1750KV and 2550KV have a 1.5 mm shaft with two M2 holes in the bell for the prop; the 2150KV and 3150KV have a 5 mm shaft.

  Source: GEPRC product page, GEPRC drawing and data table

What to pair it with

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

ESC

The highest currents in GEPRC’s tables are 21.05 A (1750KV, GF5125 at 24 V) and 23.99 A (2550KV, GF5125 at 16 V). (GEPRC drawing and data table)

Props

GEPRC says it is best with 5-inch props and tested two: an HQ T5x3 two-blade and a GF5125 three-blade. (GEPRC product page, GEPRC drawing and data table)

Battery

6S for the 1750KV (rated 2S–6S) and 4S for the 2550KV (rated 2S–4S), as in GEPRC’s tables. (GEPRC product page, GEPRC drawing and data table)

Frame

Four M2 holes on a 12 × 12 mm pattern. (GEPRC drawing and data table)

Where to buy

• GEPRCthe maker’s store; one motor, any KV (sets of four also sold)
  $19.99seen Oct 19, 2026
  Visit
• GetFPV1750KV or 2550KV
  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 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:

• Rotor. N52H magnets; GEPRC says each motor is dynamically balanced. (GEPRC product page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 2550KV 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 20 × 4 mm stator, 24.6 mm bell, 16.7 mm height, 1.5 mm shaft, 12 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: GEPRC GR2004 Motors (product page, with the spec list). Retrieved Oct 19, 2026.
2. GEPRC: GR2004 drawing and motor data table (image on the product page). The tables step by thrust, at 24 V for the 1750KV and 16 V for the 2550KV, on two 5-inch props; each ends at the highest thrust measured, which GEPRC does not label as full throttle. GEPRC’s voltage column is left out: it reads 24 V on every 1750KV row and 16 V on every 2550KV row, except the 2550KV HQ T5x3’s last row, printed as 24 V although its current and power give 16 V.. Retrieved Oct 19, 2026.
3. GEPRC: GR2004 1750KV product photo (first gallery image). Retrieved Oct 19, 2026.