Surpass Hobby 2040 Brushless Motor (4480KV) - Red & Black

This high-KV motor is designed for applications requiring high rotational speed and rapid acceleration from a compact package. It is ideal for lightweight 2-inch to 3-inch micro FPV drones, high-performance micro RC cars, and small CineWhoop builds where quick throttle response is critical. The waterproof feature extends its use to damp environments.

Yes, the Surpass Hobby 2040 features a waterproof design with internal seals. This protects the stator windings, magnets, and bearings from ingress of liquid water, moisture, dust, and fine debris. It allows for reliable operation in wet grass, light rain, or splashed conditions, but is not intended for fully submerged use.

For drone use, a motor with a 4480KV rating is typically paired with 1S or 2S LiPo batteries. Using a 1S battery (3.7V nominal) would yield a no-load speed of approximately 16,576 RPM, while a 2S battery (7.4V nominal) would yield about 33,152 RPM. Exceeding 2S is not recommended without verifying the motor's specific max voltage rating to avoid overheating or failure.

The '2040' designation refers to a stator size of 20mm in diameter and 40mm in height. You will need to confirm the specific bolt hole mounting pattern (typically a 12mm x 12mm or 16mm x 16mm M2 pattern) and the shaft diameter (commonly 1.5mm or 2mm) from the product documentation or physical inspection for proper frame and propeller compatibility.