{"product_id":"ratefpv-1404-4600kv-3800kv-2900kv-brushless-fpv-motor","title":"RATEFPV 1404 4600KV\/3800KV\/2900KV Brushless FPV Motor","description":"\u003cp\u003eThe 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\u003c\/p\u003e\n\u003ch3\u003eFeatures \u003c\/h3\u003e\n\u003ch4\u003e1. Three KV Options (Tested \u0026amp; Pilot-Approved)\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e4600KV:\u003c\/strong\u003e 4S 2.5-3 inch freestyle\/racing—max power for aggressive flying; Betaflight throttle expo fine-tunes control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3800KV: \u003c\/strong\u003e4S 2.5-3 inch cinewhoops\/freestyle—smooth thrust, low current draw for steady footage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2900KV: \u003c\/strong\u003e4S 4-inch long-range\/6S 2.5-3 inch racing—versatile, handles high loads without overheating.\u003c\/p\u003e\n\u003ch4\u003e2. Premium Durability \u0026amp; Consistency\u003c\/h4\u003e\n\u003cp\u003eHigh-quality components and strict QC avoid budget motor pitfalls. Crash-resistant uni-bell design and smooth bearings lower repair costs.\u003c\/p\u003e\n\u003ch4\u003e3. User-Friendly Design\u003c\/h4\u003e\n\u003cp\u003eWorks with 4S\/6S batteries, 2.5-4 inch frames; 9.5g design meets sub-250g regulations. High ESC compatibility simplifies setup.\u003c\/p\u003e\n\u003ch4\u003e4. Smooth Control for All Pilots\u003c\/h4\u003e\n\u003cp\u003eLinear power eliminates lag. 3800KV is beginner-friendly; 4600KV\/2900KV are for pros chasing aggressive response.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003eKV: 2900KV\/3800KV\/4600KV\u003c\/p\u003e\n\u003cp\u003eMax Power: 169.57W(4600KV\/D51-5)\u003c\/p\u003e\n\u003cp\u003eMax Current: 10.60A(4600KV\/D51-5) \u003c\/p\u003e\n\u003cp\u003eSlot Pole：9n\/12p \u003c\/p\u003e\n\u003cp\u003eWinding：Single-strand Winding\u003c\/p\u003e\n\u003cp\u003eRecommended Prop： 2-4 Inch (\u003cspan\u003eø\u003c\/span\u003e5 fixed holes） \u003c\/p\u003e\n\u003cp\u003eDimensions： \u003cspan\u003eø\u003c\/span\u003e19.4mm x 17.5mm \u003c\/p\u003e\n\u003cp\u003eOutput Shaft Diameter： \u003cspan\u003eø\u003c\/span\u003e1.5mm \u003c\/p\u003e\n\u003cp\u003eOutput Shaft Length： 3.6mm \u003c\/p\u003e\n\u003cp\u003eMounting hole： 9*9mm \u003c\/p\u003e\n\u003cp\u003eInput Voltage: 7.2v-17.4v \u003c\/p\u003e\n\u003cp\u003eFPV Drone Recommended Voltage: 10.8v-17.4v(3-4S Lipo\/Hv) \u003c\/p\u003e\n\u003cp\u003eLead Wires：100mm\/24AWG\u003c\/p\u003e\n\u003cp\u003eESC: ＞ 15A \u003c\/p\u003e\n\u003cp\u003eWeight: 10.19g( include the wire) \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"RATEFPV","offers":[{"title":"2900KV(6S High Thrust 4S Long Endurance) \/ 1 PCS","offer_id":53636349690224,"sku":null,"price":9.89,"currency_code":"USD","in_stock":true},{"title":"2900KV(6S High Thrust 4S Long Endurance) \/ 2 PCS","offer_id":53636349722992,"sku":null,"price":18.89,"currency_code":"USD","in_stock":true},{"title":"2900KV(6S High Thrust 4S Long Endurance) \/ 4 PCS","offer_id":53636349755760,"sku":null,"price":37.89,"currency_code":"USD","in_stock":true},{"title":"3800KV (4S Balanced \u0026 Highly Stable) \/ 1 PCS","offer_id":53636349788528,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true},{"title":"3800KV (4S Balanced \u0026 Highly Stable) \/ 2 PCS","offer_id":53636349821296,"sku":null,"price":18.89,"currency_code":"USD","in_stock":true},{"title":"3800KV (4S Balanced \u0026 Highly Stable) \/ 4 PCS","offer_id":53636349854064,"sku":null,"price":37.89,"currency_code":"USD","in_stock":true},{"title":"4600KV(4S High Power Compatible 3S) \/ 1 PCS","offer_id":53636349886832,"sku":null,"price":9.89,"currency_code":"USD","in_stock":true},{"title":"4600KV(4S High Power Compatible 3S) \/ 2 PCS","offer_id":53636349919600,"sku":null,"price":18.89,"currency_code":"USD","in_stock":true},{"title":"4600KV(4S High Power Compatible 3S) \/ 4 PCS","offer_id":53636349952368,"sku":null,"price":37.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/9639\/1024\/files\/05_69cb4426-a018-4db8-a7fa-b075995f1c42.png?v=1776398808","url":"https:\/\/ratefpv.com\/products\/ratefpv-1404-4600kv-3800kv-2900kv-brushless-fpv-motor","provider":"RATEFPV","version":"1.0","type":"link"}