5-inch FPV racing motor
MEPS NEON COOL 2306
A 5-inch racing motor in CW and CCW versions with direction-specific bell ribs: 33 g with leads, a TC4 titanium shaft and NMB bearings, and 1854–1860 g of thrust at full throttle on MEPS's 25.2 V bench (SZ5145).
- 5-inch racing and technical freestyle
- 6S
- 5-inch three-blade props (MEPS SZ5145, SZ4942)
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 2306 motor drawn from MEPS’s published sizes, not its exact design. Thrust, current and power are MEPS’s bench figures for the MEPS SZ5145 prop at 25.2 V, read straight across between its throttle steps. Its data starts at 10% throttle.
- Max thrust
- 1,860 g
- MEPS SZ5145 prop, 25.2 V
- Weight
- 33 g
- ±1 g, with cable
- Peak current
- 47.9 A
- full throttle
- Max power
- 1,150 W
- full throttle
from $12.99a motor at MEPS
A set of four: $51.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
MEPS’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the MEPS SZ5145: 1,028 g of thrust, 15.6 A, 386 W, 2.70 g per watt.
On your quad
11.4 : 1
Thrust to weight at full throttle: four motors pull 7,440 g with the MEPS SZ5145 at 25.2 V.
At 60% throttle they pull 4,112 g, 6.3 times the quad’s weight.
All-up weight is the quad ready to fly, with its battery and camera. The thrust is the maker’s static bench figure; in the air it is lower.
What you get for $12.99
About 1.86 kg on 6S
On MEPS's 25.2 V bench with its SZ5145 prop the CCW motor pulls 1860 g at full throttle (47.9 A) and the CW motor 1854 g (47.8 A).
Source: MEPS CW data test, MEPS CCW data test
CW and CCW bells
Green CW and pink CCW versions have rib angles matched to the prop's direction; MEPS credits them with an 8.9% flight efficiency gain.
Source: MEPS product page
Named materials
A TC4 titanium alloy shaft, NMB bearings and 220 °C enamelled wire.
Source: MEPS product page
Built for racing
MEPS describes a lightweight, low-inertia rotor for quicker braking and direction changes on race tracks.
Source: MEPS product page
What to pair it with
Our reading of MEPS’s numbers, so your build matches what the motor was tested with.
- ESC
- MEPS's guide pairs it with 35–60 A 4-in-1 ESCs. Its spec table gives a 43.8 A peak, but its SZ5145 tests draw 47.8–47.9 A at full throttle, so a 50 A or larger ESC leaves headroom. (MEPS product page, MEPS spec table, MEPS CW data test, MEPS CCW data test)
- Props
- MEPS tested its SZ5145 and SZ4942 three-blade props; the SZ5145 pulls 165–169 g more at full throttle. Its guide also names the Gemfan 5143. (MEPS CW data test, MEPS CCW data test, MEPS product page)
- Battery
- 6S. (MEPS spec table)
- Frame
- Four M3 screws on a 16 mm circle (the 16 × 16 pattern of 5-inch frames). Put CW motors with CW props and CCW motors with CCW props. (MEPS size chart, MEPS product page)
Where to buy
- MEPSthe maker's store; one motor, CW (green) or CCW (pink)$12.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 1,950 rpm/V (the only KV sold, in a CW and a CCW version) | MEPS spec table |
| Stator | 23 × 6 mm (2306) (from the model's size code; the page gives no other stator figures) | MEPS product page |
| Configuration | 12N14P (12 stator slots, 14 magnet poles) | MEPS spec table |
| Battery | 6S LiPo | MEPS spec table |
| Weight | 33 g (±1 g, with cable) | MEPS spec table |
| Dimensions | φ29.3 × 31.3 mm (with shaft); 18.5 mm from the base to the top of the bell; the base is 21 mm across (the spec table gives the diameter as Φ29 ± 0.2 mm) | MEPS size chart |
| Shaft | 5 mm (± 0.05 mm) TC4 titanium alloy, M5 × 0.8 thread 8.5 mm long, protrudes 12.8 mm above the bell (the material is from MEPS's page (S1), the tolerance from its spec table (S2)) | MEPS size chart |
| Mounting | 4 × M3 holes on a 16 mm circle | MEPS size chart |
| Bell | Direction-specific ribs (CW and CCW versions) on a low-inertia rotor | MEPS product page |
| Bearings | NMB | MEPS product page |
| Winding | 220 °C enamelled wire | MEPS product page |
| Internal resistance | 58 mΩ (±6 mΩ) | MEPS spec table |
| Idle current | 1.45 A (at most; the table heads the row "10V" but writes "(7V)" after the value) | MEPS spec table |
| Peak current | 43.8 A (MEPS's "Peak Current (60S)"; its SZ5145 data tests reach 47.8 A (CW) and 47.9 A (CCW) at full throttle) | MEPS spec table |
| Max power | 1,056 W (the SZ5145 data tests reach 1146 W (CW) and 1150 W (CCW)) | MEPS spec table |
| Leads | 150 ± 2 mm, with 10 mm of heat-shrink at the motor and 4 mm stripped ends (the heat-shrink and stripped lengths are from the size chart (S3)) | MEPS spec table |
| In the box | 1 × NEON COOL 2306 motor (CW or CCW) | MEPS product page |
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.
1950KV on 6S, 25.2 V4 props
| Prop | Throttle | Voltage (V) | Current (A) | RPM | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|---|
| MEPS SZ5145 (3-blade), CCW motor | 10% | 25.2 | 0.3 | 4850 | 33 | 8 | 4 |
| 20% | 25.2 | 1.3 | 9453 | 145 | 34 | 4.3 | |
| 30% | 25.1 | 3.5 | 13958 | 339 | 87 | 3.9 | |
| 40% | 25.1 | 6.3 | 17393 | 542 | 157 | 3.5 | |
| 50% | 25 | 10.4 | 20675 | 781 | 259 | 3 | |
| 60% | 24.8 | 15.6 | 23591 | 1,028 | 386 | 2.7 | |
| 70% | 24.7 | 22 | 26184 | 1,283 | 542 | 2.4 | |
| 80% | 24.4 | 30.1 | 28497 | 1,533 | 736 | 2.1 | |
| 90% | 24.2 | 39.1 | 30389 | 1,730 | 948 | 1.8 | |
| 100% | 24 | 47.9 | 31539 | 1,860 | 1150 | 1.6 | |
| MEPS SZ5145 (3-blade), CW motor | 10% | 25.2 | 0.3 | 4818 | 33 | 8 | 4.3 |
| 20% | 25.2 | 1.3 | 9450 | 145 | 32 | 4.5 | |
| 30% | 25.1 | 3.3 | 13757 | 332 | 82 | 4 | |
| 40% | 25.1 | 6.1 | 17272 | 534 | 152 | 3.5 | |
| 50% | 25 | 10.1 | 20460 | 770 | 253 | 3 | |
| 60% | 24.8 | 15.2 | 23388 | 1,016 | 379 | 2.7 | |
| 70% | 24.7 | 21.6 | 26026 | 1,269 | 533 | 2.4 | |
| 80% | 24.5 | 29.7 | 28388 | 1,522 | 725 | 2.1 | |
| 90% | 24.2 | 38.8 | 30344 | 1,716 | 940 | 1.8 | |
| 100% | 24 | 47.8 | 31570 | 1,854 | 1146 | 1.6 | |
| MEPS SZ4942 (3-blade), CCW motor | 10% | 25.2 | 0.3 | 4859 | 28 | 8 | 3.5 |
| 20% | 25.2 | 1.3 | 9573 | 121 | 31 | 3.9 | |
| 30% | 25.1 | 3.3 | 14115 | 278 | 78 | 3.6 | |
| 40% | 25.1 | 5.8 | 17666 | 453 | 141 | 3.2 | |
| 50% | 25 | 9.5 | 21031 | 665 | 235 | 2.8 | |
| 60% | 24.9 | 14.2 | 24056 | 885 | 354 | 2.5 | |
| 70% | 24.7 | 20 | 26834 | 1,124 | 501 | 2.2 | |
| 80% | 24.5 | 27.1 | 29385 | 1,360 | 686 | 2 | |
| 90% | 24.3 | 35.1 | 31553 | 1,556 | 894 | 1.7 | |
| 100% | 24.1 | 42.1 | 32915 | 1,691 | 1093 | 1.5 | |
| MEPS SZ4942 (3-blade), CW motor | 10% | 25.2 | 0.3 | 4854 | 28 | 8 | 3.6 |
| 20% | 25.2 | 1.2 | 9525 | 120 | 31 | 3.9 | |
| 30% | 25.1 | 3.1 | 14092 | 277 | 77 | 3.6 | |
| 40% | 25.1 | 5.5 | 17608 | 449 | 139 | 3.2 | |
| 50% | 25 | 9.3 | 20944 | 658 | 231 | 2.8 | |
| 60% | 24.9 | 14 | 23993 | 886 | 349 | 2.5 | |
| 70% | 24.7 | 19.9 | 26729 | 1,131 | 492 | 2.3 | |
| 80% | 24.5 | 27.5 | 29309 | 1,362 | 674 | 2 | |
| 90% | 24.3 | 36.4 | 31514 | 1,549 | 883 | 1.8 | |
| 100% | 24.1 | 45 | 32874 | 1,689 | 1084 | 1.6 |
Source: MEPS CCW data test, MEPS CW data test
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 (± 0.05 mm) TC4 titanium alloy, M5 × 0.8 thread 8.5 mm long, protrudes 12.8 mm above the bell (the material is from MEPS's page (S1), the tolerance from its spec table (S2)). (MEPS size chart)
- Bell. Direction-specific ribs (CW and CCW versions) on a low-inertia rotor. (MEPS product page)
- Stator. The coils are wound on a stack of thin steel laminations: 23 × 6 mm (2306) (from the model's size code; the page gives no other stator figures). (MEPS product page)
- Winding. 220 °C enamelled wire. (MEPS product page)
- Bearings. NMB. (MEPS product page)
- Base. 4 × M3 holes on a 16 mm circle. (MEPS size chart)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1950KV 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.
| Battery | Volts | No-load rpm (KV × V) | Electrical frequency | ESC steps per second |
|---|---|---|---|---|
| 4S nominal | 14.8 | 28,860 | 3,367 Hz | 20,202 |
| 4S full | 16.8 | 32,760 | 3,822 Hz | 22,932 |
| 6S nominal | 22.2 | 43,290 | 5,051 Hz | 30,303 |
| 6S full | 25.2 | 49,140 | 5,733 Hz | 34,398 |
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 23 × 6 mm stator, 29.3 mm bell, 18.5 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
- MEPS: NEON COOL 2306 1950KV high-efficiency CW/CCW brushless motor for 5'' FPV (product page with build guide, MEPS's own store). Retrieved Oct 19, 2026.
- MEPS: NEON COOL 2306 1950KV specification table (image on the product page). Retrieved Oct 19, 2026.
- MEPS: NEON COOL 2306 size chart (image on the product page). Retrieved Oct 19, 2026.
- MEPS: NEON COOL 2306 CW KV1950 data test, 10–100% throttle with SZ4942 and SZ5145 props at 25.2 V (image on the product page). Retrieved Oct 19, 2026.
- MEPS: NEON COOL 2306 CCW KV1950 data test, 10–100% throttle with SZ4942 and SZ5145 props at 25.2 V (image on the product page). Retrieved Oct 19, 2026.
- MEPS: NEON COOL 2306 1950KV CCW fluorescent pink, main product photo, used for finish. Retrieved Oct 19, 2026.
