EX1103S 7000KV Brushless Motor - Ultra-Light 3.8g, 4-Hole Mount for Reliability, Dual Bearing, Perfect for Toothpick & Larva X Upgrade Drones (1-2S)
- Product id:EX1103S brushless motor
- Color:black
- The fabric:alloy
- Size:
Upgrade your micro drone with the EX1103S 7000KV brushless motor, an ultra-lightweight powerhouse at only 3.8g. Engineered for 105-110mm Toothpick drones and Larva X upgrades, it delivers explosive power for 1-2S LiPo systems. Features durable NMB dual bearings, a universal 4-hole M2 mount for reliability, and plug-and-play compatibility with Crazybee flight controllers.
1. Ultimate Power-to-Weight Ratio for Micro Drones
The EX1103S delivers an impressive 7000KV of power while weighing a mere 3.8 grams. This exceptional power-to-weight ratio is engineered specifically for 105-110mm Toothpick-class micro drones, providing the explosive throttle response and agility needed for acrobatic flying without adding parasitic weight that drains battery life.
2. Enhanced Durability with Premium Dual Bearing Design
Built for longevity and smooth operation, this motor features high-quality imported NMB dual bearings secured by dual circlips. This premium construction significantly reduces vibration and wear, ensuring buttery-smooth rotation over extended periods. It translates to more consistent performance, less maintenance, and a longer motor lifespan compared to single-bearing or lower-quality alternatives.
3. Reliable & Universal 4-Hole M2 Mounting Standard
The upgraded design shifts from a proprietary 3-hole pattern to the universal 4-hole M2 screw mounting standard. This crucial improvement offers a more secure and reliable attachment to the motor base, virtually eliminating the risk of loosening during high-vibration flights. It guarantees broad compatibility with modern micro drone frames, including the popular Larva X (v2 carbon plate) and most other toothpick designs.
4. High-Efficiency Design for 1-2S LiPo Performance
Optimized for 1-2S LiPo battery systems, the motor’s 9N12P stator configuration and efficient electromagnetic design deliver powerful thrust while maximizing energy efficiency. This results in longer flight times and cooler running temperatures, allowing pilots to enjoy extended sessions or more aggressive flying without premature voltage sag or overheating.
5. Direct Plug-and-Play Compatibility & Easy Setup
Simplify your build or upgrade. The motor comes with pre-soldered 5CM wires and connectors marked for direction (red dot for CW, no dot for CCW), offering true plug-and-play compatibility with popular Crazybee series flight controllers. The rotation direction can still be easily reversed in BLHeli configurator, making it the perfect, hassle-free upgrade motor for Larva X drones and a versatile choice for custom toothpick builds.








The improved EX1103S KV7000 brushless motor weighs only 3.8 grams, has a 5cm cable, a sleek design, imported NMB dual bearings, and dual retaining springs, ensuring high efficiency, durability, and smooth operation. The base mounting screw holes have been upgraded from three holes to standard four holes, using M2 screws for secure mounting.
Suitable for assembling 105mm-110mm Toothpick level micro drones, compatible with 40mm-75mm propellers, 1.5mm output shaft.
Suitable for Larva X upgrades (Larva X v2 frame carbon plate is now compatible with both three-hole and four-hole motor mounting).
Black wire (connector marked with a red dot) for use with Crazybee series flight controllers, CW steering (can be reversed in BLHELI).
Black wire (connector without a red dot) for use with Crazybee series flight controllers, CCW steering (can be reversed in BLHELI).
Mode: EX1103S brushless motor
KV options: 7000KV
Configuration: 9N12P
Stator Diameter: 11mm
Stator Length: 3mm
Shaft Diameter: Φ1.5mm
Motor Dimension (Dia.*Len): Φ13.5mm*15.5mm
Weight (g): 3.8g
No. of Cells(Lipo): 2-3S
Features:
High efficiency and smooth
Dual bearing design and more balance
Better for Toothpick building
Compatible with 40mm-75mm propellers
Upgrade motor for Larva X