GEPRC SPEEDX2 1505

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 $15.99

• 450 g on 4S

  At full throttle on an HQ T3.5×2×3 at 16 V it pulled 450 g, drawing 21.56 A (340.9 W).

  Source: GEPRC data sheet

• Wear-resistant bearings

  GEPRC says its precise, wear-resistant NSK/NMB bearings give the motor a longer service life.

  Source: GEPRC product page

• M2 holes in the bell’s top

  A 1.5 mm shaft standing 4 mm above the bell, with four M2 holes on a 5 mm circle in the bell’s top.

  Source: GEPRC spec image, 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 20–30 A ESC. Its bench peaks at 21.56 A at full throttle on 16 V. (GEPRC spec image, GEPRC data sheet)

Props

GEPRC tested a 63 mm duct prop, the HQ DT63 (314 g at full throttle), and the 3.5-inch HQ T3.5×2×3 (450 g). (GEPRC data sheet)

Battery

4S. (GEPRC product page, GEPRC spec image)

Frame

Four M2 holes on a 9 × 9 mm pattern; GEPRC says it suits 2.5 to 3.5-inch lightweight models. (GEPRC product page, GEPRC drawing)

Where to buy

• GEPRCthe maker’s store
  $15.99seen 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:

• Bell. Matte black with red cut edges, over N52H magnets. (GEPRC product page, GEPRC spec image)
• Stator. 12N14P, wound with single-strand copper wire. (GEPRC product page, GEPRC spec image)
• Bearings. NSK/NMB bearings, which GEPRC calls precise and wear-resistant. (GEPRC product page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 4300KV 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 15 × 5 mm stator, 19.5 mm bell, 13.9 mm height, 1.5 mm shaft, 9 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 1505 4300KV Motor (product page, with features and the spec list). Retrieved Oct 19, 2026.
2. GEPRC: SPEEDX2 1505 specifications (image on the product page). Retrieved Oct 19, 2026.
3. GEPRC: SPEEDX2 1505 product drawing (image on the product page). Retrieved Oct 19, 2026.
4. GEPRC: SPEEDX2 1505 motor data sheet, 50–100% throttle at 16 V on an HQ DT63 and an HQ T3.5x2x3 (image on the product page). GEPRC gives one motor temperature per prop, at 19 °C ambient, without saying after how long.. Retrieved Oct 19, 2026.
5. GEPRC: SPEEDX2 1505 product photo (first gallery image). Retrieved Oct 19, 2026.
6. GEPRC: SPEEDX2 1505 top of the bell (gallery image). Retrieved Oct 19, 2026.