Ummagawd Aerolite 2004

What it pulls

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

What you get for $25.95

• 3 mm shaft, oversized bearings

  Ummagawd uses a 3 mm shaft inside the motor on custom 8 × 4 × 3 mm bearings, with a short 1.5 mm prop shaft.

  Source: Ummagawd 1700KV page

• Built light

  A two-screw mount, a slotted bell, titanium prop bolts and ribbon wires; the sheets list 15.2 g.

  Source: Ummagawd 1700KV page, Ummagawd 1600KV sheet

• Bench data at two voltages

  The 1600KV pulls 891 g at 9 A on 22.2 V with a GF5125R; the 2400KV pulls 1015 g at 15.5 A on 18.5 V.

  Source: Ummagawd 1600KV bench data, Ummagawd 2400KV sheet

• Made for 300 g quads

  Ummagawd designed it for lightweight 5-inch freestyle quads of about 300 g all-up, with its 2Fiddy and Grinderino frames.

  Source: Ummagawd 1700KV page

What to pair it with

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

Props

Ummagawd recommends HQ 5×3 two-blades for smoothness and flight time, or HQ 5×2×3 for a locked-in feel; T-mount props bolt on with the supplied titanium bolts. (Ummagawd 1700KV page)

Battery

6S for the 1600KV/1700KV (Ummagawd quotes 5–6 minutes on a 6S 450 mAh pack with HQ 5×3 props) and 4S for the 2400KV/2450KV. (Ummagawd 1700KV page)

ESC

The sheets give 10 A (1600KV) and 15.5 A (2400KV) maximum on 5S; the 1600KV's 6S bench tops out at 9 A. A 20 A ESC covers either. (Ummagawd 1600KV sheet, Ummagawd 1600KV bench data, Ummagawd 2400KV sheet)

Frame

Two M2 screws 12 mm apart, in line with the wires, as on the 2Fiddy and Grinderino; standard 12 × 12 frames work with the wires off-angle. (Ummagawd 1700KV page, Ummagawd 1600KV bench data)

Where to buy

• Ummagawdthe maker's store; 1700KV
  $25.95seen Oct 19, 2026
  Visit
• Ummagawdthe maker's store; 2450KV, bronze/gunmetal
  $25.95seen 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 Ummagawd’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:

• Shaft. 3 mm inside, 1.5 mm prop shaft standing 1.5 mm above the bell; props bolt on with 4 × M2 on a 5 × 5 mm square (T-mount). (Ummagawd 1600KV bench data)
• Bell. perforated with slotted cutouts to cut rotating mass. (Ummagawd 1700KV page)
• Stator. The coils are wound on a stack of thin steel laminations: 20 × 4 mm (2004). (Ummagawd 1600KV sheet)
• Bearings. 8 × 4 × 3 mm, custom oversized. (Ummagawd 1700KV page)
• Base. 2 × M2 holes 12 mm apart, in line with the motor wires (Ummagawd says it also fits standard 12 × 12 four-hole frames, but the wires may hang over the arm (S1)). (Ummagawd 1600KV bench data)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1700KV 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 Ummagawd’s published sizes: the 20 × 4 mm stator, 24.7 mm bell, 13.2 mm height, 1.5 mm shaft, 12 mm mounting circle and 12 teeth and 14 magnets. Anything Ummagawd 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. Ummagawd: Aerolite 2004 1700KV Motor - Gunmetal/Gold (product page on Ummagawd's own store, read through r.jina.ai). Retrieved Oct 19, 2026.
2. Ummagawd: Aerolite 2004 2450KV Motor - Bronze/Gunmetal (product page on Ummagawd's own store, read through r.jina.ai). Retrieved Oct 19, 2026.
3. Ummagawd: T2004-1600KV technical data sheet (image on the 1700KV page). Retrieved Oct 19, 2026.
4. Ummagawd: T2004-1600KV drawing and bench data, 50% and 100% throttle per prop and voltage (image on the 1700KV page). Retrieved Oct 19, 2026.
5. Ummagawd: T2004-2400KV technical data, drawing and bench data (image on the 2450KV page). Retrieved Oct 19, 2026.
6. Ummagawd: Aerolite 2004 gunmetal/gold main product photo, used for finish. Retrieved Oct 19, 2026.