MEPS SZ2408

What it pulls

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

What you get for $16.90

• 2595.5 g on 6S

  On MEPS's 25.2 V bench the 1900KV pulls 2595.5 g at full throttle on a Gemfan 6040 three-blade, drawing 73.0 A; on a Gemfan 51466 it pulls 2060.0 g at 56.4 A.

  Source: MEPS 1900KV data test

• 2145 g on 4S

  The 2500KV pulls 2145.0 g on the Gemfan 6040 at 16.8 V, drawing 73.5 A.

  Source: MEPS 2500KV data test

• Uni-bell, titanium shaft

  A 6082 aluminium uni-bell, which MEPS says adds crash resistance without adding weight, on a hollow TC4 titanium shaft, with N45SH arc magnets, NMB bearings and windings rated to 220 °C.

  Source: MEPS product page

• 40 g with leads

  Both KVs weigh 40 g including 150 mm leads.

  Source: MEPS spec table

What to pair it with

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

ESC

MEPS's peak currents are 73 A (1900KV) and 73.5 A (2500KV), both on a 6-inch Gemfan 6040. MEPS advises matching the ESC to that, and a 90% motor output limit in Betaflight on a 60 A ESC; its parts list names its NEONCORE F405 60A stack and T-Hobby's V70A SE 8S stack. (MEPS spec table, MEPS 1900KV data test, MEPS 2500KV data test, MEPS product page)

Props

MEPS tested Gemfan 51466 and 6040 three-blades and its own SZ5145; its parts list names T-Hobby's T6143 6.1-inch three-blade. (MEPS 1900KV data test, MEPS 2500KV data test, MEPS product page)

Battery

6S for the 1900KV (rated 4–6S), 4S for the 2500KV. (MEPS spec table, MEPS product page)

Frame

Four M3 screws on a 16 mm circle (16 × 16 mm); M3×8 and M3×9 screws come in the box. (MEPS size chart, MEPS product page)

Where to buy

• MEPSthe maker's store; 1 motor in either KV, $64.60 for 4
  $16.90seen 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 MEPS’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. 6082 aluminium uni-bell, teal (MEPS's "Blue") with a black top cut into six split spokes. (MEPS product page, MEPS photo)
• Magnets. N45SH arc magnets. (MEPS product page)
• Stator. 24 mm across and 8 mm tall, 12 slots and 14 poles, wound with copper wire rated to 220 °C. (MEPS product page, MEPS spec table)
• Bearings. NMB bearings. (MEPS product page)
• Shaft. Hollow TC4 titanium alloy, 5 mm, with an M5 × 0.8 thread. (MEPS product page, MEPS size chart)
• Base. Four M3 holes on a 16 mm circle. (MEPS size chart)
• Leads. 150 mm. (MEPS spec table)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1900KV 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 MEPS’s published sizes: the 24 × 8 mm stator, 29.88 mm bell, 20.3 mm height, 5 mm shaft, 16 mm mounting circle and 12 teeth and 14 magnets. Anything MEPS 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. MEPS: SZ2408 5-6" FPV Brushless Motor, Freestyle & Long-Range 1900KV/2500KV (product page, MEPS's own store). Retrieved Oct 19, 2026.
2. MEPS: SZ2408 specification table for 1900KV and 2500KV (image on the product page). Retrieved Oct 19, 2026.
3. MEPS: SZ2408 product size chart (image on the product page; its diameter and shaft labels read Φ23.88 mm and 4.6 mm, see modelNotes). Retrieved Oct 19, 2026.
4. MEPS: SZ2408 KV1900 data test, 10–100% throttle with GF6040-3 at 16.8 V and GF51466-3, GF6040-3 and SZ5145 props at 25.2 V (image on the product page; the rpm column is headed "BPM"). Retrieved Oct 19, 2026.
5. MEPS: SZ2408 KV2500 data test, 10–100% throttle with GF51466-3, GF6040-3 and SZ5145 props at 16.8 V (image on the product page; the rpm column is headed "BPM"). Retrieved Oct 19, 2026.
6. MEPS: SZ2408 1900KV Blue main product photo, with the top view on the same page, used for finish and spoke count. Retrieved Oct 19, 2026.