{"product_id":"castle-creations-ghost-rc-perfect-pass-rc-cobra-5-ace-1721-2400kv-motor-combo-1","title":"Castle Creations Ghost RC Perfect Pass RC Cobra 5 ACE \u0026 1721 2400KV Motor Combo","description":"\u003ch3 class=\"p1\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e**BEFORE PURCHASING - PLEASE READ ALL DISCLAIMERS REGARDING WARRANTY AND PRODUCT USE WARNINGS ABOUT THIS PRODUCT.**\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch2 class=\"p1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTHE DREAM COMBO FOR SPEED RUNNIG AND DRAG RACING\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is the ultimate power combo for serious speed-run and drag racers: the Cobra 5 ACE ESC paired with the 1721-2400KV Ghost RC motor. Together they deliver brutal torque, fast throttle response, and rock-solid stability at extreme RPM. The ESC’s unlimited power capability works perfectly with the motor’s Ghost-mode architecture for stronger pulls, higher top speed, and consistent performance under heavy load. If you want maximum power with no limits and no protections, this combo is the clear choice for your next record-breaking build.\u003c\/p\u003e\n\u003ch2 class=\"p1\"\u003e\u003cspan style=\"text-decoration: underline; color: rgb(0, 195, 255);\"\u003e\u003cstrong\u003eCobra 5 ACE ESC – Co-Developed by Castle Creations, Ghost RC \u0026amp; Perfect Pass RC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eIntroducing the \u003cspan class=\"s1\"\u003eCobra 5 ACE - \u003c\/span\u003ean \u003cspan class=\"s1\"\u003eunlimited\u003c\/span\u003e, high-performance ESC engineered for those who live for \u003cspan class=\"s1\"\u003espeed \u003c\/span\u003e\u003cspan class=\"s1\"\u003eruns\u003c\/span\u003e and \u003cspan class=\"s1\"\u003edrag racing\u003c\/span\u003e. Born from an exclusive collaboration between \u003cspan class=\"s1\"\u003eCastle Creations\u003c\/span\u003e, \u003cspan class=\"s1\"\u003eGhost RC\u003c\/span\u003e, and \u003cspan class=\"s1\"\u003ePerfect Pass RC\u003c\/span\u003e, this next-generation speed controller redefines what’s possible in RC performance.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eBuilt to dominate straight-line speed and withstand the most extreme power setups, the Cobra 5 ACE delivers \u003cspan class=\"s1\"\u003einsane amperage capability\u003c\/span\u003e, \u003cspan class=\"s1\"\u003elightning-fast response\u003c\/span\u003e, and BUILT IN PERFECT PASS LAUNCH CONTROL!! - making it the top choice for serious RC speed enthusiasts around the world.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\" class=\"p3\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eWARNING - UNLIMITED ESC!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eNO PROTECTIONS - EXTREMELY DANGEROUS \u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eNO WARRANTY!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 class=\"p5\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p5\"\u003e\u003cstrong\u003e⚡ \u003cspan class=\"s1\"\u003eUnlimited  Power\u003c\/span\u003e\u003c\/strong\u003e – No restrictions. Run high-amperage setups with the 6 gauge power wires and push the limits without any compromises.\u003c\/p\u003e\n\u003cp class=\"p6\"\u003e\u003cstrong\u003e🏁 \u003cspan class=\"s1\"\u003eSpeedrun \u0026amp; Drag Racing Optimized\u003c\/span\u003e\u003c\/strong\u003e – Tuned specifically for elite top-speed builds and drag setups.\u003c\/p\u003e\n\u003cp class=\"p6\"\u003e🧠 \u003cstrong\u003e\u003cspan class=\"s1\"\u003e32-Bit Processing Power\u003c\/span\u003e\u003c\/strong\u003e – Next-level throttle precision, faster response times, and smarter tuning.\u003c\/p\u003e\n\u003cp class=\"p6\"\u003e❄️ \u003cstrong\u003e\u003cspan class=\"s1\"\u003eAdvanced Cooling Design\u003c\/span\u003e\u003c\/strong\u003e – Built to stay cool under extreme loads with precision thermal engineering.\u003c\/p\u003e\n\u003cp class=\"p6\"\u003e🔧 \u003cstrong\u003e\u003cspan class=\"s1\"\u003eCastle Link Tuning\u003c\/span\u003e\u003c\/strong\u003e – Fully compatible with Castle’s advanced tuning software for dialed-in performance.\u003c\/p\u003e\n\u003cp class=\"p6\"\u003e🛠️ \u003cstrong\u003e\u003cspan class=\"s1\"\u003eBuilt by the Best\u003c\/span\u003e\u003c\/strong\u003e – A true three-way partnership: Castle’s electronics legacy, Ghost RC’s innovation, and Perfect Pass RC’s speed-run expertise.\u003c\/p\u003e\n\u003ch3 class=\"p5\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThe New Standard for ESCs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p5\"\u003eThis isn’t just another speed controller - it’s the \u003cspan class=\"s1\"\u003eESC that everyone will be chasing\u003c\/span\u003e. Designed from the ground up by the people who live and breathe RC performance, the Cobra 5 ACE is your unfair advantage on the road, the strip, or the track.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eIf you want to go faster, run harder, and leave limits behind, the \u003cspan class=\"s1\"\u003eCobra 5 ACE\u003c\/span\u003e is your next upgrade.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline; color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003e\u003cspan\u003e1721 - 2400KV BY CASTLE CREATIONS \u0026amp; GHOST RC\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe new\u003cspan\u003e GHOST RC\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e1721-2400kv motor is based on Castle's proven 4-pole sensored design and has been redesigned for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGHOST MODE\u003c\/strong\u003e. Engineers have made improvements in reliability and performance for the speed run and drag racing communities.  The 1721-2400KV pairs perfectly with the COBRA 5 ACE\u003cstrong\u003e,\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eproviding an incredibly powerful racing setup.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eENHANCEMENTS FROM PREVIOUS GENERATION: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarger rear bearing to provide more support at higher RPM\u003c\/li\u003e\n\u003cli\u003eLonger output shaft (30mm vs 22mm on the previous version)\u003c\/li\u003e\n\u003cli\u003eWinding wires extend directly from the back of the motor, decreasing resistance.\u003c\/li\u003e\n\u003cli\u003e8mm shaft extends the full length of the rotor, increase strength and balancing\u003c\/li\u003e\n\u003cli\u003eStainless-steel wrapped rotor and ultra balanced shaft to protect in high RPM applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis 2400Kv brushless motor from Ghost RC \u0026amp; Castle Creations is purpose-built for high-demand straight-line driving - whether you are chasing times in drag racing or pushing top speed in speed runs, this motor is manufactured with tight tolerances, consistent magnetic alignment, and a high-efficiency rotor architecture that maintains stability at extended full-throttle pulls. Perfect Pass RC brings this unit to our catalog for builders who want competition-grade hardware with clean, predictable, repeatable power delivery - without compromise.\u003c\/p\u003e\n\u003cp\u003eDesigned for Drag racing and Speed-runs only.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKey Features:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. RPM\u003c\/strong\u003e: 90,000.\u003c\/li\u003e\n\u003cli\u003e2400 KV without sacrificing torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeautiful robust construction:\u003c\/strong\u003e Built with a stainless-steel wrapped rotor and an ultra-balanced shaft to maintain integrity and stability at extreme RPM.\u003c\/li\u003e\n\u003cli\u003eIdeal for running up to 8s LiPo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Use Statements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis is an extremely powerful motor designed for advanced and experienced users ONLY!\u003c\/li\u003e\n\u003cli\u003eBelow are suggestions for increasing your likelihood of success but it is not guaranteed.\u003c\/li\u003e\n\u003cli\u003eThis is a VERY high RPM motor. Start with very conservative gearing (small pinion\/large spur).\u003c\/li\u003e\n\u003cli\u003eCheck your data logs, temperatures and setup closely after each run to ensure you are not stressing components.\u003c\/li\u003e\n\u003cli\u003eThis motor is intended for single passes only; allow time between runs for the ESC and motor to cool down to ambient temperatures.\u003c\/li\u003e\n\u003cli\u003eThis motor can pull very high amperages. Make sure your batteries, connectors and soldering are capable of handling the loads. Inadequate power can cause poor performance and damage the batteries and\/or ESC.\u003c\/li\u003e\n\u003cli\u003eDo NOT free rev the motor with no load, particularly when running 6s or higher. The RPM output of the motor is much higher with no load as the kv and battery voltages do not drop.\u003c\/li\u003e\n\u003cli\u003eSet ESC timing to Lowest (0). This motor will pull considerably more amperage as you increase timing. This does not necessarily equate to more speed as it puts more strain on the batteries and causes the voltage to sag. Less is more sometimes.\u003c\/li\u003e\n\u003cli\u003eDo not exceed 33.6v when using this motor.\u003c\/li\u003e\n\u003cli\u003eBe sure your pinion and motor bullets are secure before and after each run.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWARRANTY:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eDue to the abusive nature of drag racing and speedrun setups, Castle is not liable for incidental or consequential damages to other equipment such as ESCs and batteries when using this motor and is not responsible for failures resulting from abuse, improper installation, misapplication or alteration, NO WARRANTY!\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eDrag and speed run setups are inherently abusive and extremely hard on all electronic components. Every component in the configuration can be strained, weakened (or worse) without using extreme caution, observance of electric theory and advanced knowledge of all aspects of the RC hobby. High speed runs and drag racing are the most advanced, aggressive and volatile applications in the RC car hobby. Improper setup or use of this product can result in catastrophic failures of the motor, ESC and\/or batteries and yourself!\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #949699;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"border: 1px solid rgb(148, 150, 153); padding: 10px; text-align: center;\"\u003eMotor Technical Specs\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25%; border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75%; border: 1px solid #949699; padding: 8px;\"\u003eMax: 8S LiPo (33.6 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eKv\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e2400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eMax. RPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e90,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003eLength: 102.3 mm (4.03\") (not including wires)\u003cbr\u003eDiameter: 47.7 mm (1.88\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eWeight (w\/wires)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e751.3 g (26.5 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eShaft Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003eLength: 30 mm\u003cbr\u003eDiameter: 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eMounting Hole Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003eM3 and M4 @ 25.4 mm (1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eConnectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003eNo bullet connectors included. Motor has bare stator wires (59 mm length).\u003cbr\u003e\u003cstrong\u003eDo not cut or shorten factory stator wires.\u003c\/strong\u003e\u003cbr\u003eMust solder flexible, silicone wires to the stator wires.\u003cbr\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e attach male bullets directly to the factory stator wires and plug into the ESC’s female bullets — this can induce vibration and cause the bullets to detach.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eRecommended ESC(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003ca title=\"Cobra 5 ACE\" href=\"https:\/\/www.perfectpassrc.com\/products\/castle-creations-cobra-5-ace-esc\"\u003eCOBRA 5 ACE\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003e\u003cstrong\u003eRunning Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #949699; padding: 8px;\"\u003eSmartSense™ (with Castle sensor-capable ESC), Sensored, and ultra-efficient Sensorless mode.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CASTLE CREATIONS","offers":[{"title":"Default Title","offer_id":52950718251324,"sku":"CC-C5A-1721-2400","price":614.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/9207\/6092\/files\/Cobra_5_ACE_1721_2400KV_Ghost.jpg?v=1765295019","url":"https:\/\/www.perfectpassrc.com\/products\/castle-creations-ghost-rc-perfect-pass-rc-cobra-5-ace-1721-2400kv-motor-combo-1","provider":"Perfect Pass RC","version":"1.0","type":"link"}