{"product_id":"surpass-hobby-bat-s4214-400kv-660kv-brushless-fpv-motor","title":"Surpass Hobby BAT S4214 400KV\/660KV Brushless FPV Motor for Multirotor Drones, M6 Shaft, 12N14P","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eSurpass Hobby BAT S4214 is a brushless FPV motor for multirotor\/FPV aircraft builds. It is available in 400KV and 660KV versions and uses an M6 threaded shaft for prop installation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eM6 shaft fits most propellers; custom nuts help protect steel shaft threads\u003c\/li\u003e\n\u003cli\u003eDetachable design for easier cleaning; front cover airflow structure helps improve heat dissipation\u003c\/li\u003e\n\u003cli\u003e48SH rotor with NdFeB magnet tiles\u003c\/li\u003e\n\u003cli\u003eLightweight, high-strength hole-core steel shaft\u003c\/li\u003e\n\u003cli\u003eNMB bearings (Japan), smooth and wear-resistant\u003c\/li\u003e\n\u003cli\u003e220C high-temperature resistant multi-strand copper wire\u003c\/li\u003e\n\u003cli\u003e0.2 mm silicon steel sheet (Japan) for low heat generation and high efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eS4214\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKV options\u003c\/td\u003e\n\u003ctd\u003e400KV \/ 660KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot\/Poles\u003c\/td\u003e\n\u003ctd\u003e12N14P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor size\u003c\/td\u003e\n\u003ctd\u003eDia 50.4 x 60.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStator size\u003c\/td\u003e\n\u003ctd\u003eDia 42 x 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft\u003c\/td\u003e\n\u003ctd\u003eDia 6 mm, M6 (CW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e4 x M4, Dia 30 mm bolt circle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire\u003c\/td\u003e\n\u003ctd\u003e14#; 670 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eElectrical (by KV)\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003e400KV\u003c\/th\u003e\n\u003cth\u003e660KV\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax watts\u003c\/td\u003e\n\u003ctd\u003e2393.3 W\u003c\/td\u003e\n\u003ctd\u003e2138.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current\u003c\/td\u003e\n\u003ctd\u003e57.16 A\u003c\/td\u003e\n\u003ctd\u003e86.07 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo-load current\u003c\/td\u003e\n\u003ctd\u003e0.7 A\u003c\/td\u003e\n\u003ctd\u003e1.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance\u003c\/td\u003e\n\u003ctd\u003e60.2 m\u003c\/td\u003e\n\u003ctd\u003e30.9 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (including wire)\u003c\/td\u003e\n\u003ctd\u003e255.8 g\u003c\/td\u003e\n\u003ctd\u003e257.0 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eThrust Test Data (GF1270-3 Prop)\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter (100% throttle)\u003c\/th\u003e\n\u003cth\u003eS4214 400KV\u003c\/th\u003e\n\u003cth\u003eS4214 660KV\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM\u003c\/td\u003e\n\u003ctd\u003e12470\u003c\/td\u003e\n\u003ctd\u003e11727\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolts\u003c\/td\u003e\n\u003ctd\u003e41.87 V\u003c\/td\u003e\n\u003ctd\u003e24.85 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmps\u003c\/td\u003e\n\u003ctd\u003e57.16 A\u003c\/td\u003e\n\u003ctd\u003e86.07 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWatts\u003c\/td\u003e\n\u003ctd\u003e2393.3 W\u003c\/td\u003e\n\u003ctd\u003e2138.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque\u003c\/td\u003e\n\u003ctd\u003e1.387 N.m\u003c\/td\u003e\n\u003ctd\u003e1.230 N.m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust\u003c\/td\u003e\n\u003ctd\u003e7011 g\u003c\/td\u003e\n\u003ctd\u003e6219 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e3.9 g\/W\u003c\/td\u003e\n\u003ctd\u003e4.1 g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor efficiency\u003c\/td\u003e\n\u003ctd\u003e75.7%\u003c\/td\u003e\n\u003ctd\u003e70.6%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e35.3C\u003c\/td\u003e\n\u003ctd\u003e34.6C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eOptions\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eKV: 400KV or 660KV\u003c\/li\u003e\n\u003cli\u003eQuantity: 1PCS or 4PCS\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor help choosing the right KV option for a specific prop and power setup, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Surpass Hobby BAT S4214 brushless FPV motor for multirotor drones, 400KV\/660KV, 12N14P, M6 shaft\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor.webp?v=1785420143\"\u003e\u003cp\u003eHigh-efficiency BAT S4214 motor for multirotor and FPV builds, offered in 400KV or 660KV.\u003c\/p\u003e\n\u003cimg alt=\"Close-up of BAT S4214 motor top with M6 threaded shaft and lock nut for propeller mounting\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor_9ed7df23-04f4-4821-8e48-392b4b3a9104.webp?v=1785420157\"\u003e\u003cp\u003eThe M6 threaded shaft fits common propellers, while the custom nut helps protect the steel threads during installs.\u003c\/p\u003e\n\u003cimg alt=\"BAT S4214 rotor assembly showing 48SH rotor magnet tiles and lightweight hole-core steel shaft\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor_16de89eb-7a03-4b21-890f-748a76438b16.webp?v=1785420169\"\u003e\u003cp\u003eA 48SH rotor with NdFeB magnet tiles pairs with a lightweight, high-strength hole-core steel shaft for dependable output.\u003c\/p\u003e\n\u003cimg alt=\"Stator windings and bearing detail for BAT S4214 motor, showing copper coils and central bearing\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor_bc775693-8cc7-4f78-8db1-cfb0717b7fd8.webp?v=1785420181\"\u003e\u003cp\u003eQuality internals—including NMB bearings, high-temperature copper winding, and silicon steel—support smooth running and efficiency.\u003c\/p\u003e\n\u003cimg alt=\"Exploded view of Surpass Hobby BAT S4214 motor showing detachable parts and airflow structure for heat dissipation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor_4e9ac57c-56eb-4c51-a287-db49b4d2d192.webp?v=1785420194\"\u003e\u003cp\u003eThe detachable design makes cleaning easier, and the front-cover airflow structure helps move heat away during long flights.\u003c\/p\u003e\n\u003cimg alt=\"BAT S4214 motor specifications sheet with 400KV\/660KV thrust test tables and dimension drawings\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-BAT-S4214-400KV-660KV-Brushless-FPV-Motor_6bbcd4a7-205e-4ef9-b1fd-6241b2dd9441.webp?v=1785420206\"\u003e\u003cp\u003eFull size, mounting, and thrust-test reference for planning prop, battery, and frame compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Surpass Hobby","offers":[{"title":"400KV \/ 1PCS","offer_id":53749459681504,"sku":"S4214-Motor-1","price":59.0,"currency_code":"USD","in_stock":true},{"title":"400KV \/ 4PCS","offer_id":53749459714272,"sku":"S4214-Motor-2","price":187.0,"currency_code":"USD","in_stock":true},{"title":"660KV \/ 1PCS","offer_id":53749459747040,"sku":"S4214-Motor-3","price":59.0,"currency_code":"USD","in_stock":true},{"title":"660KV \/ 4PCS","offer_id":53749459779808,"sku":"S4214-Motor-4","price":187.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/2c633a36-b4ff-42d1-9984-15b8787c20a5.jpg_1180xaf.webp?v=1785419460","url":"https:\/\/rcdrone.top\/products\/surpass-hobby-bat-s4214-400kv-660kv-brushless-fpv-motor","provider":"RCDrone","version":"1.0","type":"link"}