DYS SunFun 2207

What you get for $12.00

• About 1.6 kg on 5S

  On a 20 V pack DYS measured 1,620 g from the 2450KV on a 6040 two-blade, drawing 33.2 A, and 1,318 g on a 5045 two-blade.

  Source: DYS product page

• Three windings

  DYS lists 1750KV, 2450KV and 2750KV. It tested the 1750KV on a 7×4E (1,305 g at 27 A on 20 V) and the 2750KV on a 5045 two-blade (1,460 g at 33.6 A on 20 V).

  Source: DYS product page

• 35.44 g

  DYS gives 35.44 g and shows the motor on a scale with its leads.

  Source: DYS product page

What to pair it with

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

ESC

DYS’s highest test currents are 33.6 A (2750KV, 5045 two-blade, 20 V) and 33.2 A (2450KV, 6040 two-blade, 20 V). DYS publishes no current rating. (DYS product page)

Props

DYS tested the 2450KV on 5045 and 6040 two-blades, the 2750KV on a 5045 two-blade, and the 1750KV on a 7×4E as well as both two-blades. (DYS product page)

Battery

DYS’s tests use 4S and 5S packs (16 V and 20 V); it publishes no cell rating. (DYS product page)

Frame

Four M3 holes on a 16 mm circle (16 × 16 mm). (DYS drawing)

Where to buy

• GetFPV1750KV, 2450KV or 2750KV; only the 2450KV in stock
  $16.99seen Oct 19, 2026
  Visit
• MyFPVStore1750KV
  $12.00seen 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 DYS’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. 5 mm, threaded for the top 10.5 mm; it stands 14 mm above the bell (14 mm is the drawing’s 32.7 mm overall length less the 18.7 mm body). (DYS drawing)
• Stator. The coils are wound on a stack of thin steel laminations: 22 × 7 mm (2207). (DYS product page)
• Base. 4 × M3 holes on a 16 mm circle (16 × 16 mm). (DYS drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 2450KV 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 DYS’s published sizes: the 22 × 7 mm stator, 27.7 mm bell, 18.7 mm height, 5 mm shaft and 16 mm mounting circle. Anything DYS 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. DYS: SF2207 (SunFun 2207) product page, with photos, size and weight, and DYS’s bench results for all three KVs. The tables step by thrust (200 g, then 500 g or 900 g, then the highest load listed, which DYS doesn’t label as full throttle); DYS heads the efficiency column %, but its figures are grams per watt; its no-load speed column repeats the voltage and is left out.. Retrieved Oct 19, 2026.
2. DYS: SF2207 dimension drawing (image on DYS’s product page). Retrieved Oct 19, 2026.