EMAX ECO III 2306 2400KV Motor - The New Budget Ripper

The EMAX ECO III 2306 2400KV Motor is the latest evolution of everyone’s favourite cheap-but-cheerful series, now packing even more punch for 4S freestyle and race builds. EMAX kept the price stupidly low while upgrading bearings, materials and winding technique — this thing absolutely screams on 4S with 5–5.5″ props and survives the kind of punishment you dish out on a typical Aussie weekend.

Highlights

• Proper G1 precision bearings for glass-smooth spin and longer life
• Tough 7075-T6 aluminium bell with deep anodising that shrugs off scratches
• Steel shaft + single-strand copper winding for better heat dissipation and efficiency
• Crazy light at only 29.5 g (without wires) — perfect for sub-250 g 5-inch builds
• 2400 KV on 4S = explosive power without melting your ESCs
• Comes with every screw and nut you’ll ever need — no extra trips to Bunnings

Design & Ergonomics

EMAX went hard on the details with the ECO III. The new 7075 bell is beefier where it counts, the steel shaft laughs at prop strikes, and those G1-level precision bearings are the same quality you’d find on motors twice the price. Single-strand winding runs cooler than the old multi-strand stuff, so you can hammer full throttle laps all day without thermal sag. At under 30 g it feels right at home on lightweight X-frames or toothpicked cine-lifters, and the 120 mm 20 AWG silicone wires give you plenty of length for clean builds.

Specifications

• Brand: EMAX
• Model: ECO III 2306
• KV: 2400 KV
• Configuration: 12N14P
• Stator Diameter: 23 mm
• Stator Height: 06 mm
• Motor Dimensions: 28.9 × 31.8 mm
• Weight: 29.5 g (without wires)
• Idle Current @ 10 V: 1.7 A
• Internal Resistance: 47 mΩ
• Max Current (4S): 43 A
• Max Power (4S): 720 W
• Battery: 3–4S LiPo (4S recommended)
• Recommended Props: 5″–5.5″
• Shaft: 4 mm steel
• Bearing: G1 precision
• Mounting: 16 × 16 mm (M3)
• Wires: 20 AWG silicone, 120 mm

In the Box

• 1 × EMAX ECO III 2306 2400KV Motor
• 5 × M3 × 8 mm screws
• 5 × M3 × 7 mm screws
• 5 × M3 × 6 mm screws
• 1 × Aluminium M5 nylock nut
• 1 × Shaft washer & screw set

(No batteries included — obviously!)

Mounting & Compatibility

Standard 16 × 16 mm pattern bolts straight into pretty much any 5-inch frame on the market. The 4 mm steel shaft is press-fit and ready for your favourite props — just slap on an M5 nylock and you’re good to go. Pair it with Ethix S5s or HQ 5140s on 4S and you’ll have more rip than you know what to do with.

Upgrade your 4S rig without draining the bank account — grab the EMAX ECO III 2306 2400KV Motor today and go send it harder than ever!