• EMAX RSIII 2207 FPV racing motor, side view with threaded shaft and RSIII branding
  • EMAX RSIII motor close-up showing EMAX logo band, chrome bell and copper windings
  • EMAX RSIII 2207 motor side label close-up showing 2207 marking and motor wire lead
  • Top-down macro of brushless motor stator windings and bell spoke design around center shaft
  • Top view of motor bell with spoke cutouts and exposed copper windings
  • Angled close-up of motor shaft and bell, showing cutouts and copper windings inside
  • EMAX RSIII motor angled side profile with wire lead and base mount visible
  • Package contents: EMAX motor box, RSIII motor, mounting screws, and prop adapter hardware
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EMAX RSIII 2207 FPV Racing Motor 1800KV / 2100KV / 2500KV - 4mm Shaft, 3-6S Specs & Thrust Data

EMAX RSIII 2207 FPV Racing Motor 1800KV / 2100KV / 2500KV - 4mm Shaft, 3-6S Specs & Thrust Data

Emax

$48.09 USD
$48.09 USD
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Overview

The EMAX RSIII 2207 FPV racing motor is offered in 1800KV, 2100KV, and 2500KV options. RSIII is designed for 5" propeller setups, and the RSIII 2100KV is rated for up to 6S LiPo use. For setup help or order support, contact https://rcdrone.top/ or email support@rcdrone.top.

Key Features

  • KV options: 1800KV, 2100KV, 2500KV
  • Two size options are referenced: 2207 and 2306
  • Rated cell counts by KV (see Specifications)
  • Robust 4 mm titanium alloy bearing shaft (feature text)
  • Designed around 5" propellers (prop range varies by KV; see Specifications)
  • Lightweight reference: 29.3 g (2207, without wires) and 27.7 g (2306, without wires)

Specifications (RSIII-2207)

KV1800

Motor Dimensions φ 26.9*33 mm
Framework 12N14P
Bearing Shaft 4 mm
Lead 20#AWG 120 mm
Weight 29.3 g (W/O Silicone Wire)
Idle Current (10V) 1.1 A
Internal Resistance 72 mΩ
No. of cells 3-6S
Propeller 5"-5.5"
Peak Current (6S) 43 A
Max. Power (6S) 1080 W

KV2100

Motor Dimensions φ 26.9*33 mm
Framework 12N14P
Bearing Shaft 4 mm
Lead 20#AWG 120 mm
Weight 29.4 g (W/O Silicone Wire)
Idle Current (10V) 1.5 A
Internal Resistance 54 mΩ
No. of cells 3-6S
Propeller 5"
Peak Current (6S) 50 A
Max. Power (6S) 1260 W

KV2500

Motor Dimensions φ 26.9*33 mm
Framework 12N14P
Bearing Shaft 4 mm
Lead 20#AWG 120 mm
Weight 29.4 g (W/O Silicone Wire)
Idle Current (10V) 2.1 A
Internal Resistance 42 mΩ
No. of cells 3-4S
Propeller 5"-5.5"
Peak Current (4S) 45 A
Max. Power (4S) 750 W

Dimensions (RSIII-2207 drawing callouts)

Outer diameter φ 26.9
Overall height 33
Body height 26.1
Top section 12.9
Shaft thread M5
Mounting 4-M3
Mounting pattern φ 16
Lead length shown 120

Thrust / Payload Test Data (as provided)

RSIII2207-1800KV (25.2 V)

Propeller Current (A) Thrust (G) Power (W) Efficiency (G/W) Speed (RPM)
DALPROP 2.9 300 73.08 4.11 15600
DALPROP 5.7 500 143.64 3.48 19800
DALPROP 8.9 700 224.28 3.12 23100
DALPROP 28.3 1630 713.16 2.29 Max
Cyclone 5050-3 2.9 300 73.08 4.11 12800
Cyclone 5050-3 5.8 500 146.16 3.42 16300
Cyclone 5050-3 9.4 700 236.88 2.96 19100
Cyclone 5050-3 42.6 1930 1073.52 1.80 Max
Cyclone 5046-3 2.9 300 73.08 4.11 13600
Cyclone 5046-3 5.8 500 146.16 3.42 17400
Cyclone 5046-3 9.3 700 234.36 2.99 20100
Cyclone 5046-3 38.1 1920 960.12 2.00 Max
HQ 5*4.3*3 2.9 300 73.08 4.11 14500
HQ 5*4.3*3 5.5 500 138.60 3.61 18400
HQ 5*4.3*3 8.8 700 221.76 3.16 21800
HQ 5*4.3*3 30.1 1730 758.52 2.28 Max
HQ 5*4.8*3 2.9 300 73.08 4.11 13500
HQ 5*4.8*3 5.6 500 141.12 3.54 17900
HQ 5*4.8*3 9 700 226.80 3.09 20300
HQ 5*4.8*3 35.3 1920 889.56 2.16 Max
GF 5045-3 2.9 300 73.08 4.11 15300
GF 5045-3 5.6 500 141.12 3.54 19300
GF 5045-3 8.9 700 224.28 3.12 22500
GF 5045-3 31 1720 781.20 2.20 Max

RSIII2207-2100KV (25.2 V)

Propeller Current (A) Thrust (G) Power (W) Efficiency (G/W) Speed (RPM)
DALPROP 3 300 75.60 3.97 13700
DALPROP 5.8 500 146.16 3.42 19400
DALPROP 9.3 700 234.36 2.99 22700
DALPROP 40.2 1980 1013.04 1.95 Max
Cyclone 5046-3 3 300 75.60 3.97 13400
Cyclone 5046-3 6.1 500 153.72 3.25 17100
Cyclone 5046-3 9.9 700 249.48 2.81 20300
Cyclone 5046-3 50.3 2210 1267.56 1.74 Max
HQ 5*4.3*3 3.1 300 78.12 3.84 14500
HQ 5*4.3*3 5.9 500 148.68 3.36 18400
HQ 5*4.3*3 9.4 700 236.88 2.96 21800
HQ 5*4.3*3 41.2 2030 1038.24 1.96 Max
HQ 5*4.8*3 3.1 300 78.12 3.84 13300
HQ 5*4.8*3 6.1 500 153.72 3.25 17100
HQ 5*4.8*3 9.6 700 241.92 2.89 20100
HQ 5*4.8*3 47.9 2220 1207.08 1.84 Max
GF 5045-3 3 300 75.60 3.97 15000
GF 5045-3 6.1 500 153.72 3.25 19300
GF 5045-3 9.6 700 241.92 2.89 22200
GF 5045-3 42.8 2030 1078.56 1.88 Max

RSIII2207-2500KV (16.8 V)

Propeller Current (A) Thrust (G) Power (W) Efficiency (G/W) Speed (RPM)
DALPROP 4.8 300 80.64 3.72 15500
DALPROP 9.1 500 152.88 3.27 18400
DALPROP 13.9 700 233.52 3.00 22900
DALPROP 36.5 1480 613.20 2.41 Max
Cyclone 5046-3 4.6 300 77.28 3.88 13800
Cyclone 5046-3 9 500 151.20 3.31 17000
Cyclone 5046-3 14.1 700 236.88 2.96 20200
Cyclone 5046-3 44.9 1630 754.32 2.16 Max
HQ 5*4.3*3 4.6 300 77.28 3.88 14400
HQ 5*4.3*3 8.8 500 147.84 3.38 18400
HQ 5*4.3*3 13.8 700 231.84 3.02 21700
HQ 5*4.3*3 37.3 1490 626.64 2.38 Max
HQ 5*4.8*3 4.6 300 77.28 3.88 13300
HQ 5*4.8*3 8.9 500 149.52 3.34 17400
HQ 5*4.8*3 14.6 700 245.28 2.85 20300
HQ 5*4.8*3 43.1 1630 724.08 2.25 Max
GF 5045-3 4.6 300 77.28 3.88 15400
GF 5045-3 9.1 500 152.88 3.27 19500
GF 5045-3 14.1 700 236.88 2.96 22800
GF 5045-3 37.3 1460 626.64 2.33 Max

Applications

  • FPV racing drone builds using 5" propellers

Details

EMAX RSIII 2207 FPV Racing Motor hero view with RSIII bell and M5 threaded shaft

RSIII brings EMAX’s race-proven build to a 2207 size motor designed for responsive 5-inch setups.

RSIII 2207 motor side view highlighting 2207 marking, open bell design, and silicone motor leads

Choose the KV that matches your build goals—1800KV, 2100KV, or 2500KV options are available.

Top-down view of RSIII 2207 motor showing copper windings and reinforced 4 mm shaft assembly

A robust 4 mm bearing shaft supports smooth rotation and durability for hard racing laps.

Angled RSIII 2207 motor close-up showing lightweight open bell and compact 5-inch racing form factor

Optimized around 5-inch propellers, with a lightweight build for quick throttle response.

EMAX RSIII-2207 dimensions and specifications sheet with KV 1800/2100/2500, 12N14P, 4-M3 mount

Full RSIII-2207 specifications and dimension callouts help confirm fitment before ordering.

RSIII 2207 1800KV payload test table listing propellers, thrust (g), current (A), power (W), RPM

Thrust test data for the 1800KV option across multiple 5-inch propeller setups.

RSIII 2207 2100KV payload test results table with thrust, efficiency (g/W), power and RPM columns

Payload test results for 2100KV support tuning choices for 6S-capable 5-inch builds.

RSIII 2207 2500KV payload test table with 4S voltage entries, thrust, current, power and RPM

Details

Emax RSIII 2207 FPV Racing motor w/ 1800KV 2100KV 2500KVRSIII 2207 motor side view highlighting 2207 marking, open bell design, and silicone motor leadsTop-down view of RSIII 2207 motor showing copper windings and reinforced 4 mm shaft assemblyAngled RSIII 2207 motor close-up showing lightweight open bell and compact 5-inch racing form factorEMAX RSIII 2207 FPV racing motor spec sheet with dimensions, mounting pattern, and KV optionsRSIII 2207 1800KV payload test table listing propellers, thrust, current, power, efficiency and RPMRSIII 2207 2100KV thrust and efficiency test table for multiple 5-inch propeller combinationsRSIII 2207 2500KV payload test table at 4S with thrust (g), power (W), efficiency and RPM

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