{"product_id":"firduo-75141-brushless-inrunner-motor-100kv-9kw","title":"Firduo Brushless Inrunner Motor 75141 100KV 9KW for Efoil \u0026 Jetboard","description":"\u003ch2\u003e🌊 Firduo 75141 Brushless Inrunner Motor — 100KV \/ 9KW for Efoil \u0026amp; Jetboard\u003c\/h2\u003e\n\u003cp\u003eThe Firduo 75141 is a high-torque, fully waterproof brushless inrunner motor engineered for demanding efoil, electric hydrofoil, and jetboard applications. With 50KGF maximum thrust and a robust 18N\/20P construction, it delivers the power and reliability needed for serious water sports builds.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚡ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fully waterproof — rated for full submersion in marine environments\u003c\/li\u003e\n\u003cli\u003e✅ High-torque 18N\/20P construction for smooth, efficient power delivery\u003c\/li\u003e\n\u003cli\u003e✅ 50KGF maximum thrust — ideal for efoil and jetboard propulsion\u003c\/li\u003e\n\u003cli\u003e✅ Wide voltage range: 5S–18S (21–75V) for flexible battery compatibility\u003c\/li\u003e\n\u003cli\u003e✅ 120℃ working temperature limit for sustained high-power operation\u003c\/li\u003e\n\u003cli\u003e✅ 8mm gold bullet plug connectors for secure, low-resistance connections\u003c\/li\u003e\n\u003cli\u003e✅ 1300mm extension wire — long enough for most efoil mast configurations\u003c\/li\u003e\n\u003cli\u003e✅ Compatible with Firduo FD75200 75V 200A VESC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e📋 Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0f0f0;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eD75 × L141 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e18N \/ 20P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eKV Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100 KV (RPM\/V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5S–18S (21–75V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMax Current\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9 KW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRated Power\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.5 KW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMax Torque\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRated Torque\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6.2 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMax Thrust\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50 KGF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eShaft Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eΦ12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePlug Type\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8mm Gold Bullet Plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eExtension Wire Length\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInsulation Class\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAC500V \/ 1mA \/ 3S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFully Waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWorking Temp. Limit\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.8 KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFull Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center; margin: 24px 0;\"\u003e\u003cimg style=\"max-width: 100%;\" alt=\"Firduo 75141 motor dimensions\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/D75L141-100kv.jpg?v=1739500715\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFirduo 75141-100KV Brushless Inrunner Motor × 1\u003c\/li\u003e\n\u003cli\u003e8.0mm bullet connectors × 3\u003c\/li\u003e\n\u003cli\u003e120A waterproof connector × 3 (optional kit only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e🔗 Compatible ESC\u003c\/h2\u003e\n\u003cp\u003eDesigned to pair with the \u003cstrong\u003eFirduo FD75200 75V 200A Water-Cooled VESC\u003c\/strong\u003e for a complete, high-performance efoil drivetrain. \u003ca href=\"https:\/\/firduo.com\/products\/hgltech-hi200-75v-high-current-200a-esc-base-on-vesc-with-water-cooling-enclosure-for-e-foil\"\u003eView compatible ESC →\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e❓ FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What ESC is recommended for this motor?\u003c\/strong\u003e\u003cbr\u003eA: The Firduo FD75200 75V 200A VESC-compatible ESC is the ideal pairing for this motor in efoil applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What battery configuration works best?\u003c\/strong\u003e\u003cbr\u003eA: The motor supports 5S–18S (21–75V). For efoil use, 12S–16S LiPo or Li-ion packs are most common.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this motor truly waterproof?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the 75141 is fully waterproof and rated for continuous submersion in fresh and salt water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What propeller size is compatible?\u003c\/strong\u003e\u003cbr\u003eA: The 12mm shaft is compatible with standard efoil propellers. Check your foil mast specifications for the best match.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this motor be used for applications other than efoil?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the 75141 is suitable for jetboards, underwater thrusters, and other high-power watercraft DIY builds.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin: 24px 0;\"\u003e\u003cimg style=\"max-width: 100%; float: none;\" alt=\"Firduo 75141 motor package\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/65111_8c64c6f7-5bd0-479e-8afc-eb3a38a484c7.jpg?v=1697178711\"\u003e\u003c\/div\u003e","brand":"FIRDUO","offers":[{"title":"75141 Motor","offer_id":45144829755570,"sku":"75141-1","price":369.0,"currency_code":"USD","in_stock":true},{"title":"75141 Motor*1+120A CONNECTOR*3","offer_id":45145096323250,"sku":"75141-2","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/2_0b673273-8402-4914-b1c2-2d4acb7fbb6e.jpg?v=1739514892","url":"https:\/\/firduo.com\/products\/firduo-75141-brushless-inrunner-motor-100kv-9kw","provider":"Firduo","version":"1.0","type":"link"}