RATEFPV 1404 4600KV/3800KV/2900KV Brushless FPV Motor

The RATEFPV 1404 Brushless Motor series (4600KV/3800KV/2900KV) delivers tailored, reliable performance validated by global pilot reviews. Engineered for lightweight 2.5-4 inch builds—ideal for sub-250g setups compliant with most US/EU regulations—this motor balances power, efficiency, and durability, solving common pain points of budget alternatives (overheating, inconsistent thrust, poor responsiveness). With three optimized KV options, it caters to aggressive racing, smooth freestyle, and long-range filming, making it versatile for hobbyists and seasoned pilots alike. Its premium construction (including smooth bearings and precise winding) ensures consistent performance, while its lightweight design (around 9.5g) enhances agility without sacrificing sturdiness

Features 

1. Three KV Options (Tested & Pilot-Approved)

4600KV: 4S 2.5-3 inch freestyle/racing—max power for aggressive flying; Betaflight throttle expo fine-tunes control.

3800KV: 4S 2.5-3 inch cinewhoops/freestyle—smooth thrust, low current draw for steady footage.

2900KV: 4S 4-inch long-range/6S 2.5-3 inch racing—versatile, handles high loads without overheating.

2. Premium Durability & Consistency

High-quality components and strict QC avoid budget motor pitfalls. Crash-resistant uni-bell design and smooth bearings lower repair costs.

3. User-Friendly Design

Works with 4S/6S batteries, 2.5-4 inch frames; 9.5g design meets sub-250g regulations. High ESC compatibility simplifies setup.

4. Smooth Control for All Pilots

Linear power eliminates lag. 3800KV is beginner-friendly; 4600KV/2900KV are for pros chasing aggressive response.

Specifications

KV: 2900KV/3800KV/4600KV

Max Power: 169.57W(4600KV/D51-5)

Max Current: 10.60A(4600KV/D51-5) 

Slot Pole：9n/12p 

Winding：Single-strand Winding

Recommended Prop： 2-4 Inch (ø5 fixed holes） 

Dimensions： ø19.4mm x 17.5mm 

Output Shaft Diameter： ø1.5mm 

Output Shaft Length： 3.6mm 

Mounting hole： 9*9mm 

Input Voltage: 7.2v-17.4v 

FPV Drone Recommended Voltage: 10.8v-17.4v(3-4S Lipo/Hv) 

Lead Wires：100mm/24AWG

ESC: ＞ 15A 

Weight: 10.19g( include the wire)