Drone Motors

8- to 10-inch long-range FPV motor

GEPRC SPEEDX2 3110

A 79.3 g 3110 for 8- to 10-inch long-range quads, in 900KV for 6S–8S or 1250KV for 6S; on GEPRC’s 6S bench the 1250KV pulled 3,184 g at full throttle on a Gemfan 9045 and the 900KV 2,788 g on a 10-inch HQProp.

  • 8- to 10-inch long range
  • 7- to 9-inch X8
  • 6S (both KVs) or 8S (900KV)
Drawing the 3D model…

The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 3110 motor drawn from GEPRC’s published sizes, not its exact design. Thrust, current and power are GEPRC’s bench figures for the HQProp 10 × 5 × 3 prop at 24.89 V, read straight across between its throttle steps. Its data starts at 50% throttle.

Version

GEPRC lists it for 7- to 10-inch props on 6S–8S (25.2–33.6 V).

Max thrust
2,788 g
HQProp 10 × 5 × 3 prop, 24.89 V
Weight
79.3 g
including the leads; the same for both KVs
Peak current
49.7 A
full throttle
Max power
1,171 W
full throttle

Plain links: we earn nothing from them.

What it pulls

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

01,0002,0003,00050%60%70%80%90%100%gthrottle2,788 gHQProp 10 × 5 × 3

At 60% with the HQProp 10 × 5 × 3: 1,537 g of thrust, 18.6 A, 459 W, 3.30 g per watt.

On your quad

17.2 : 1

Thrust to weight at full throttle: four motors pull 11,152 g with the HQProp 10 × 5 × 3 at 24.89 V.

At 60% throttle they pull 6,148 g, 9.5 times the quad’s weight.

All-up weight is the quad ready to fly, with its battery and camera. The thrust is the maker’s static bench figure; in the air it is lower.

What you get

  • 3.2 kg on 6S

    The 1250KV pulled 3,184 g at full throttle on a Gemfan 9045 at 22.56 V, drawing 75.26 A.

    Source: GEPRC data sheet, GEPRC full-throttle summary

  • 900KV up to 8S

    GEPRC rates the 900KV for 6S–8S and 7- to 10-inch props; on a 10-inch HQProp at about 24 V it pulled 2,788 g at 49.66 A.

    Source: GEPRC spec image, GEPRC data sheet

  • One-piece 7075 rotor

    CNC-machined in one piece from 7075-T6 aluminium alloy, with fins on the prop seat that GEPRC says stop the prop slipping.

    Source: GEPRC product page, GEPRC rotor image

  • Kawasaki steel, N52H magnets

    A Kawasaki silicon-steel stator and N52H magnets; GEPRC says the magnetic circuit uses about 10% less power than conventional motors of the same class.

    Source: GEPRC product page

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 60–70 A ESC and lists peaks of 58.52 A for the 900KV (on 8S) and 75.26 A for the 1250KV (on 6S), both on a Gemfan 9045. (GEPRC spec image, GEPRC full-throttle summary)
Props
7- to 10-inch for the 900KV, 7- to 9-inch for the 1250KV. GEPRC’s data sheet runs the 900KV on an HQProp 10 × 5 × 3 and the 1250KV on a Gemfan 9045. (GEPRC spec image, GEPRC data sheet)
Battery
6S–8S for the 900KV, 6S for the 1250KV. (GEPRC spec image)
Frame
Four M3 holes on a 19 × 19 mm pattern, with M3×9 round-head screws in the box; GEPRC names 8- to 10-inch long-range quads and 7- to 9-inch X8s. (GEPRC product page, GEPRC spec image, GEPRC title image)

Where to buy

  • GEPRCthe maker’s store; $39.99 for either KV, both listed as out of stock
    $39.99seen Oct 19, 2026
    Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

SpecValueSource
KV900 rpm/V (also 1250KV)GEPRC product page, GEPRC spec image
Stator31 × 10 mm (3110); Kawasaki silicon-steel coreGEPRC product page
Configuration12N14P (12 stator slots, 14 magnet poles)GEPRC product page, GEPRC spec image
Battery6S–8S LiPo (25.2–33.6 V) for the 900KV; 6S (25.2 V) for the 1250KV (the page text gives 25.2 V (6S) for both KVs; the spec image and the data sheet run the 900KV on 8S too)GEPRC spec image, GEPRC data sheet
Weight79.3 g (including the leads; the same for both KVs)GEPRC product page, GEPRC spec image
Dimensionsφ37.8 × 39.5 mm (with shaft); 24.6 mm without it (GEPRC’s spec list writes Φ39.58 × 37.85 mm, the two figures swapped)GEPRC drawing, GEPRC size photo
ShaftΦ5 mm with an M5 thread (9 mm of thread), protruding 15 mmGEPRC spec image, GEPRC drawing, GEPRC size photo
Mounting4 × M3 holes on a 19 mm circle (19 × 19 mm) (the drawing labels the holes 3-M3 but draws four, and four M3×9 screws come in the box)GEPRC product page, GEPRC spec image, GEPRC drawing
Bell7075-T6 aluminium alloy, CNC-machined in one pieceGEPRC product page, GEPRC spec image, GEPRC rotor image
MagnetsN52H arc magnetsGEPRC product page, GEPRC spec image
BearingsNSK/NMB (as GEPRC gives it)GEPRC spec image
WindingSingle-strand copper windingGEPRC spec image
Internal resistance80 mΩ (1250KV 44 mΩ; GEPRC gives it as interphase resistance)GEPRC spec image
Max current58.52 A (GEPRC’s figure from a full-throttle run on a Gemfan 9045 at 31.85 V (8S); 1250KV 75.26 A on the same prop at 22.56 V (6S))GEPRC product page, GEPRC spec image, GEPRC full-throttle summary
Max power1,863.68 W (from the same run; 1250KV 1697.87 W)GEPRC product page, GEPRC spec image, GEPRC full-throttle summary
Leads18 AWG, 265 mm (the drawing gives 260 ± 5 mm, the size photo 250 mm, and the page’s 1250KV list 270 mm)GEPRC product page, GEPRC spec image
In the box4 × M3×9 round-head screws and an M5 flange nutGEPRC product page, GEPRC spec image

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.

900KV on 6S–8S, 24.89 V1 prop

PropThrottleVoltage (V)Current (A)Thrust (g)Power (W)Efficiency (g/W)
HQProp 10 × 5 × 3 (10-inch, three blades)motor at 90 °C50%24.8911.161,224277.84.4
60%24.6318.651,537459.33.3
70%24.524.431,992598.53.3
80%24.1432.52,316784.63
90%23.9440.482,550969.12.6
100%23.5749.662,7881170.52.4

Source: GEPRC data sheet

1250KV on 6S, 24.5 V1 prop

PropThrottleVoltage (V)Current (A)Thrust (g)Power (W)Efficiency (g/W)
Gemfan 9045 (9-inch, three blades)motor at 95 °C50%24.518.721,534458.63.3
60%24.1529.142,027703.72.9
70%23.839.232,375933.72.5
80%23.4750.832,73111932.3
90%22.9362.872,9861441.62.1
100%22.5675.263,1841697.91.9

Source: GEPRC data sheet

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

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.

BatteryVoltsNo-load rpm (KV × V)Electrical frequencyESC steps per second
4S nominal14.813,3201,554 Hz9,324
4S full16.815,1201,764 Hz10,584
6S nominal22.219,9802,331 Hz13,986
6S full25.222,6802,646 Hz15,876

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 31 × 10 mm stator, 37.8 mm bell, 24.6 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: SPEEDX2 3110 900KV/1250KV Motor (product page, with the spec list for each KV). Retrieved Oct 19, 2026.
  2. GEPRC: SPEEDX2 3110 specifications for each KV (image on the product page). It writes the size as Φ39.58 × 37.85 mm.. Retrieved Oct 19, 2026.
  3. GEPRC: SPEEDX2 3110 product drawing (image on the product page). It labels the mounting holes 3-M3 but draws four.. Retrieved Oct 19, 2026.
  4. GEPRC: SPEEDX2 3110 motor data sheet, 50–100% throttle: the 900KV on an HQProp 8 × 4 × 3 and a Gemfan 9045 at about 33.5 V and an HQProp 10 × 5 × 3 at about 24.5 V, the 1250KV on a Gemfan 9045 at about 24 V (image on the product page). Each row’s voltage is as measured; GEPRC gives one motor temperature per prop.. Retrieved Oct 19, 2026.
  5. GEPRC: SPEEDX2 3110 sizes: 5 mm shaft with 9 mm of thread, 24.6 mm body, 39.5 mm overall, 250 mm leads (image on the product page). Retrieved Oct 19, 2026.
  6. GEPRC: SPEEDX2 3110 full-throttle figures for each KV on a Gemfan 9045-3, with motor temperatures after 10 s at full throttle (image on the product page). Retrieved Oct 19, 2026.
  7. GEPRC: SPEEDX2 3110 title image, “suitable for 8-10inch long range FPV/7-9 inch X8 models” (image on the product page). Retrieved Oct 19, 2026.
  8. GEPRC: SPEEDX2 3110 “Integrated Outer Rotor” image, on the one-piece 7075 rotor and the finned prop seat (image on the product page). Retrieved Oct 19, 2026.
  9. GEPRC: SPEEDX2 3110 product photo from the side (first gallery image). Retrieved Oct 19, 2026.
  10. GEPRC: SPEEDX2 3110 top view, showing the five spokes and their red edges (gallery image). Retrieved Oct 19, 2026.
  11. GEPRC: SPEEDX2 3110 “High-strength Motor Structure” image, on the rotor edge (image on the product page). Retrieved Oct 19, 2026.