GEPRC SPEEDX2 1404 3850KV Motor

The GEPRC SPEEDX2 1404 3850KV motor is a prime example of how far micro FPV technology has evolved. In the past, pilots who wanted to build 3–4″ drones often had to accept compromises: either go with heavy motors that gave good thrust but ruined agility, or use lighter options that lacked durability and torque. The SPEEDX2 1404 changes this equation by combining light weight (~10.5 g with leads), strong magnetic design, and efficient engineering into a package that feels perfectly balanced for modern mini builds.

At 3850KV, this motor is tuned for 4S setups—offering a middle ground between high-revving punch and manageable efficiency. That makes it versatile: whether you’re building a freestyle 3″ quad for tight gaps, a cinewhoop for smooth footage, or even a light racer where every gram matters, this motor provides both responsiveness and longevity.

Its N52H magnets, NSK/NMB bearings, and 9N12P stator structure aren’t just spec sheet items—they directly translate into torque stability, smooth flight characteristics, and better throttle resolution. For pilots, this means faster control response in freestyle, crisper handling in racing, and steadier hover for cinematic work. In short, the SPEEDX2 1404 3850KV isn’t just about raw numbers—it’s about refined performance tailored to the micro class.

🧠 Key Features & Build Intelligence

This motor is built with engineering choices that prioritize both durability and agility. The N52H magnets deliver high magnetic strength while resisting demagnetization at higher temps, and the NSK/NMB bearings ensure smoother rotation for extended life. Combined with a single-strand copper winding layout, the SPEEDX2 maintains efficient heat dissipation even under heavy throttle punches.

The aesthetic design — a red-and-black anodized finish — not only looks sharp but also signals its premium machining quality.