GEPRC SPEEDX2 2107.5

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 $23.99

• About 2.1 kg on 6S

  The 1960KV pulled 2,121 g at full throttle on an HQ 5.1×3.1×3 at 24 V, drawing 35.2 A.

  Source: GEPRC data table

• One-piece rotor, hollow shaft

  GEPRC makes the rotor in one piece from 7075 and the shaft hollow, from titanium alloy, for 29.5 g with 3 cm of wire.

  Source: GEPRC weight infographic

• N52H arc magnets

  Curved N52H magnets around what GEPRC calls a low-loss stator, which it says runs cooler.

  Source: GEPRC product page, GEPRC features image

• Damping O-ring, thicker base

  An O-ring that GEPRC says cuts vibration and lengthens bearing life, and a thickened base for crashes.

  Source: GEPRC features image

What to pair it with

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

ESC

GEPRC ran its full-throttle test with a 45 A ESC. Its tables peak at 39.6 A for the 1960KV at 24 V and 45.2 A for the 2450KV at 21 V, both on the HQ Ethix S5. (GEPRC data table, GEPRC test infographic)

Props

GEPRC tested five 5-inch props: HQ Ethix S4 and S5, DAL T5147.5, GF 5152 and HQ 5.1×3.1×3. The HQ 5.1×3.1×3 gave the 1960KV the most thrust at 24 V; the Ethix S5 gave the 2450KV the most at 21 V. (GEPRC data table)

Battery

6S for the 1960KV (rated 5S–6S); 4S or 5S for the 2450KV. GEPRC recommends 6S packs of 1050–1550 mAh. (GEPRC product page, GEPRC spec image)

Frame

Four M3 holes on a 16 × 16 mm pattern. GEPRC names its Mark 4 and Mark 4 HD5 5-inch frames. (GEPRC product page, GEPRC drawing)

Where to buy

• GEPRCthe maker’s store; 1960KV in blue, green, orange or titanium, 2450KV in titanium (only the 1960KV titanium was in stock)
  $23.99seen Oct 19, 2026
  Visit
• RaceDayQuadschoose the version
  price on the store’s page
  Visit
• GetFPV1960KV or 2450KV
  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:

• Bell. One-piece 7075 rotor with N52H arc magnets. (GEPRC weight infographic, GEPRC features image)
• Shaft. Hollow titanium alloy shaft, 5 mm with an M5 thread; a nut that covers the threads is in the box. (GEPRC weight infographic, GEPRC features image)
• Base. A thickened base that GEPRC says is more crash resistant, and a damping O-ring for the bearings. (GEPRC features image)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1960KV 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 21 × 7.5 mm stator, 26.83 mm bell, 18.25 mm height, 5 mm shaft, 16 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 2107.5 1960KV/2450KV Motors (product page, with the spec list). Retrieved Oct 19, 2026.
2. GEPRC: SPEEDX2 2107.5 specifications for each KV (image on the product page). Retrieved Oct 19, 2026.
3. GEPRC: SPEEDX2 2107.5 product drawing and weighing photo (image on the product page). Retrieved Oct 19, 2026.
4. GEPRC: SPEEDX2 2107.5 motor data table, 1960KV at 21 V and 24 V and 2450KV at 16 V and 21 V on five 5-inch props (image on the product page). Temperatures are after 5 s at full throttle; GEPRC marks the 81–85 °C runs as hot. The 2450KV’s higher-voltage rows are printed as 24 V, but every power figure in them is the current × 21 V and GEPRC’s infographic (S5) gives the same 1,912 g row at 21 V, so they are recorded at 21 V.. Retrieved Oct 19, 2026.
5. GEPRC: SPEEDX2 2107.5 full-throttle results on an HQ Ethix S4 with an F45A ESC, 1960KV at 24 V and 2450KV at 21 V, ambient 25 °C (infographic on the product page). Retrieved Oct 19, 2026.
6. GEPRC: SPEEDX2 2107.5 weight infographic (one-piece 7075 rotor, hollow titanium alloy shaft, 29.5 g with 3 cm of wire; image on the product page). Retrieved Oct 19, 2026.
7. GEPRC: SPEEDX2 2107.5 features (N52H magnets, low-loss stator; image on the product page). Retrieved Oct 19, 2026.
8. GEPRC: SPEEDX2 2107.5 features (damping O-ring, M5 shaft and nut, thickened base; image on the product page). Retrieved Oct 19, 2026.
9. GEPRC: SPEEDX2 2107.5 product photo, green and blue versions (first gallery image). Retrieved Oct 19, 2026.
10. GEPRC: SPEEDX2 2107.5 blue version from the side (gallery image). Retrieved Oct 19, 2026.