GEPRC GR1106

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

• About 275 g on 4S

  The 4500KV pulled 275 g at full throttle on a GF2035BN*4 four-blade at 16 V, drawing 9.59 A.

  Source: GEPRC data table

• Three KVs

  GEPRC suggests the 4500KV for 2 to 3-inch props on 3–4S, the 6000KV for 2 to 2.5-inch on 2–3S and the 7500KV for 1.9 to 2.3-inch on 2S.

  Source: GEPRC product page, GEPRC KV guide

• Steel shaft, N50SH magnets

  A 1.5 mm high-hardness steel shaft, N50SH arc magnets and NSK bearings.

  Source: GEPRC product page, GEPRC features image

• Bolt-on prop hub

  Besides the 1.5 mm shaft, the hub has four M2 holes on a 5 mm circle for props that bolt on.

  Source: GEPRC drawing and specs

What to pair it with

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

ESC

GEPRC gives max currents (180 s) of 9.59 A (4500KV), 15.27 A (6000KV) and 11.72 A (7500KV); its tables peak at 13.8 A, for the 7500KV on a GF2540*3 at 8 V. (GEPRC drawing and specs, GEPRC data table)

Props

GEPRC tested GF2540*3, GF2040*3, GF2035BN*4 and DYS3030*3 props, and pairs it with the Gemfan GF2040 three-blade. (GEPRC features image, GEPRC data table)

Battery

3S–4S for the 4500KV, 2S–3S for the 6000KV and 7500KV; GEPRC suggests 2S for the 7500KV. (GEPRC KV guide, GEPRC drawing and specs)

Frame

Four M2 holes on a 9 mm circle, with M2×4, M2×5 and M2×7 screws in the box. (GEPRC drawing and specs, GEPRC box photo)

Where to buy

• GEPRCthe maker’s store; 4500KV, out of stock when checked
  $12.89seen 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:

• Bell. CNC-machined high-strength aluminium, dynamically balanced. (GEPRC build image, GEPRC features image)
• Shaft. A 1.5 mm high-hardness steel shaft. (GEPRC features image)
• Stator. 9N12P, wound with copper wire rated to 180 °C, inside N50SH arc magnets. (GEPRC build image, GEPRC features image, GEPRC drawing and specs)
• Base. GEPRC gives the base casing as 6061 aluminium, and glues the motor wires so they can’t come loose. (GEPRC product page, GEPRC features image)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 4500KV 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 12-pole rotor has 6 pole pairs, so every turn of the shaft is 6 electrical cycles, and a six-step ESC switches the phases 36 times per turn.

About the 3D model

A generic outrunner drawn from GEPRC’s published sizes: the 11 × 6 mm stator, 14.2 mm bell, 14 mm height, 1.5 mm shaft, 9 mm mounting circle and 9 teeth and 12 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: GEP-GR1106 4500kv Motor (product page, with the spec list for the 7500KV, 6000KV and 4500KV). Retrieved Oct 19, 2026.
2. GEPRC: GR1106 banner (7.1 g, maximum thrust 350 g+, NSK bearings; image on the product page). Retrieved Oct 19, 2026.
3. GEPRC: GR1106 KV guide: 4500KV for 2 to 3-inch props on 3–4S, 6000KV for 2 to 2.5-inch on 2–3S, 7500KV for 1.9 to 2.3-inch on 2S (image on the product page). Retrieved Oct 19, 2026.
4. GEPRC: GR1106 build (high-strength aluminium, CNC machining, dynamic balance, copper wire rated to 180 °C; image on the product page). Retrieved Oct 19, 2026.
5. GEPRC: GR1106 features (1.5 mm high-hardness steel shaft, N50SH arc magnets, glued wires, Gemfan GF2040 three-blade props; image on the product page). Retrieved Oct 19, 2026.
6. GEPRC: GR1106 design drawing and specification table (image on the product page). Retrieved Oct 19, 2026.
7. GEPRC: GEP-GR1106 motor data, 4500KV at 12 V and 16 V, 6000KV at 12 V and 7500KV at 8 V on GF2540*3, GF2040*3, GF2035BN*4 and DYS3030*3 props, 50–100% throttle (image on the product page). Temperatures are after 15 s at full throttle.. Retrieved Oct 19, 2026.
8. GEPRC: GR1106 product photo (first gallery image). Retrieved Oct 19, 2026.
9. GEPRC: GR1106 from above, showing the four-spoke top (gallery image). Retrieved Oct 19, 2026.
10. GEPRC: GR1106 with its box and screws, labelled M2×7, M2×5 and M2×4 (gallery image). Retrieved Oct 19, 2026.