{"product_id":"xlpower-nimbus-550-nitro-v2-kit-w-o-blades","title":"XLPower Nimbus 550 Nitro V2 Kit w\/o Blades","description":"\u003cp data-start=\"0\" data-end=\"61\"\u003e\u003cstrong data-start=\"0\" data-end=\"59\"\u003eNimbus 550 V2 Nitro — Balanced Power, Refined Precision\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"63\" data-end=\"571\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"67\" data-end=\"90\"\u003eNimbus 550 V2 Nitro\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis XLPower’s next evolution of its high-performance nitro-powered 550-class helicopter kit. Building on the proven foundation of the original Nimbus 550 Nitro, the V2 refines every critical system for greater smoothness, reliability, and control. It combines the precise control geometry of its electric predecessors with a robust, meticulously balanced nitro drivetrain—delivering responsive power, smooth clutch engagement, and exceptional maintainability for advanced pilots.\u003c\/p\u003e\n\u003ch3 data-start=\"578\" data-end=\"621\"\u003e\u003cstrong data-start=\"582\" data-end=\"619\"\u003eKey Improvements (V2 vs Original)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"624\" data-end=\"709\"\u003e🧩\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"627\" data-end=\"659\"\u003ePre-balanced clutch assembly\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor reduced vibration and extended bearing life\u003c\/p\u003e\n\u003cp data-start=\"624\" data-end=\"709\"\u003e⚙️ \u003cstrong data-start=\"715\" data-end=\"740\"\u003eExtended engine shaft\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor improved axial stability and smoother operation\u003c\/p\u003e\n\u003cp data-start=\"797\" data-end=\"928\"\u003e🔧\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"800\" data-end=\"832\"\u003eRe-engineered start coupling\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— starter cup no longer sits inside the bearing, preventing clutch loosening during operation\u003c\/p\u003e\n\u003cp data-start=\"931\" data-end=\"1051\"\u003e🌀\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"934\" data-end=\"965\"\u003eNew tail pitch lever system\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eadopted from the electric V2, offering stronger tail authority and crisper response\u003c\/p\u003e\n\u003cp data-start=\"931\" data-end=\"1051\"\u003e💨 \u003cstrong data-start=\"1057\" data-end=\"1090\"\u003eSignificantly lower vibration\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacross all RPM ranges, with smoother spool-up and more stable hover\u003c\/p\u003e\n\u003ch3 data-start=\"1167\" data-end=\"1190\"\u003e\u003cstrong data-start=\"1171\" data-end=\"1188\"\u003eCore Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1191\" data-end=\"1505\"\u003e\u003cstrong data-start=\"1191\" data-end=\"1234\"\u003eRedesigned Upper Swash Plate \u0026amp; Geometry\u003c\/strong\u003e\u003cbr data-start=\"1234\" data-end=\"1237\"\u003eTo eliminate unequal cyclic\/collective differential, the Nimbus 550 V2 Nitro ships with a new upper swash plate and longer outer swash balls. This refinement ensures balanced servo geometry while maintaining the proven control ratios from the electric Nimbus series.\u003c\/p\u003e\n\u003cp data-start=\"1507\" data-end=\"1728\"\u003e\u003cstrong data-start=\"1507\" data-end=\"1532\"\u003eTapered Clutch System\u003c\/strong\u003e\u003cbr data-start=\"1532\" data-end=\"1535\"\u003eBorrowed from the Nitro 700 platform, the tapered clutch provides smoother engagement and easier clutch stack alignment, further enhanced in the V2 with pre-balancing for ultra-low vibration.\u003c\/p\u003e\n\u003cp data-start=\"1730\" data-end=\"1938\"\u003e\u003cstrong data-start=\"1730\" data-end=\"1753\"\u003eRigid Airframe Core\u003c\/strong\u003e\u003cbr data-start=\"1753\" data-end=\"1756\"\u003eA one-piece 7075 aluminum bearing block and servo mount form the structural backbone of the frame, giving outstanding drivetrain rigidity and stability during aggressive maneuvers.\u003c\/p\u003e\n\u003cp data-start=\"1940\" data-end=\"2098\"\u003e\u003cstrong data-start=\"1940\" data-end=\"1968\"\u003e120° Cyclic Servo Layout\u003c\/strong\u003e\u003cbr data-start=\"1968\" data-end=\"1971\"\u003eServos are arranged in a 120° layout for optimal geometry, ensuring consistent control feel across the full collective range.\u003c\/p\u003e\n\u003cp data-start=\"2100\" data-end=\"2325\"\u003e\u003cstrong data-start=\"2100\" data-end=\"2123\"\u003eEase of Maintenance\u003c\/strong\u003e\u003cbr data-start=\"2123\" data-end=\"2126\"\u003eThe engine can be removed from the bottom of the frame in minutes without dismantling other assemblies. The fan shroud is independently detachable from the side, simplifying maintenance and tuning.\u003c\/p\u003e\n\u003cp data-start=\"2100\" data-end=\"2325\"\u003e\u003cstrong data-start=\"2327\" data-end=\"2350\"\u003eBalanced Gear Ratio\u003c\/strong\u003e\u003cbr data-start=\"2350\" data-end=\"2353\"\u003eStandard 7.7:1 gear ratio optimized for 550–580 mm blades, offering excellent RPM and torque balance for demanding maneuvers. Optional 8.5:1 ratio upgrade extends capability to 650-class setups.\u003c\/p\u003e\n\u003cdiv class=\"product__description rte quick-add-hidden\"\u003e\n\u003cp data-start=\"2556\" data-end=\"2736\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBuilt for pilots who demand the perfect harmony of\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2607\" data-end=\"2644\"\u003enitro power and XLPower precision\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2650\" data-end=\"2673\"\u003eNimbus 550 V2 Nitro\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers confidence you can feel — from start-up to touchdown.\u003c\/p\u003e\n\u003ch2 data-start=\"2556\" data-end=\"2736\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003e\u003cstrong\u003eLength w\/o main blades:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1,148 mm\u003cbr\u003e\u003cstrong\u003eOverall height:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e315 mm\u003cbr\u003e\u003cstrong\u003eFrame width:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e206 mm\u003cbr\u003e\u003cstrong\u003eFrame weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1,500 g\u003cbr\u003e\u003cstrong\u003eMain shaft diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e10 mm\u003cbr\u003e\u003cstrong\u003eFeathering shaft diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8 mm\u003cbr\u003e\u003cstrong\u003eMain gear:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e170 T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePinion gear\u003c\/strong\u003e：22T（20T Optional）\u003cbr\u003eMain gear ratio：7.7（8.5 Optional）\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTail ratio:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.615 （5 Optional）\u003cbr\u003e\u003cstrong\u003eFuel tank capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e345 cc\u003cbr\u003e\u003cstrong\u003eRecommended blade length:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e550 – 580 mm\u003cbr\u003e\u003cstrong\u003eEngine class:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e.50 – .55 nitro\u003cbr\u003e\u003cstrong\u003ePower system:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNitro (requires engine, pipe, servos, and gyro)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/flmjrMoc1Rk?si=etSBGsLxtnAdvgKd\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eAll- New Compact Nitro Clutch System\u003c\/h3\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003eThe new system features multiple engineering upgrades over the previous version:\u003c\/p\u003e\n\u003cp\u003e🧩\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAll-new pre-balanced clutch assembly\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— factory balanced to minimize vibration and extend bearing life.\u003cbr\u003e⚙️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRedesigned extended engine shaft\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— provides higher axial rigidity and smoother transmission, greatly reducing clutch stack distortion under load.\u003cbr\u003e🔧\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRefined starter coupling structure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— starter cup no longer sits inside the bearing, preventing loosening during operation and improving long-term reliability.\u003cbr\u003e🎯\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eImproved concentricity\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— upper clutch bearing alignment has been significantly enhanced for a smoother, more efficient drivetrain.\u003cbr\u003e🧰\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOptimized taper angle\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— allows easier installation and secure clutch engagement without excessive tightening.\u003cbr\u003e🔄\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUniversal compatibility\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— fully compatible with both OS and YS engines, requiring no modification.\u003cbr\u003e⚖️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRecommended tightening torque\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— 16–18 Nm for optimal locking force and reliability.\u003cbr\u003eTogether, these upgrades result in a drivetrain that runs quieter, stays cooler, and offers unmatched precision and durability — a true step forward from the original Nimbus 550 Nitro.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/6_61bbccd4-31db-47c5-9648-b71a91c5ffa9.webp?v=1763628464\" alt=\"\" width=\"461\" height=\"461\"\u003e\u003c\/p\u003e\n\u003cp class=\"image-with-text__text image-with-text__text--caption caption-with-letter-spacing caption-with-letter-spacing--medium\"\u003ePrecision\u003c\/p\u003e\n\u003ch2\u003eCNC Main Gear Assembly\u003c\/h2\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003eWith a 7.7 gear ratio, it is perfectly matched to achieve a good rotor RPM while providing enough torque for demanding maneuvers with 550–580mm blades. Optional parts are available to stretch it to a 650-size with an 8.5 gear ratio.\u003cbr\u003eThe main gear directly drives the head and has been designed to efficiently transmit rotor torque, producing peak power through extreme rigidity.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/dcbf72e787b7062579cd90c590ef6479.webp?v=1763628505\" alt=\"\" width=\"457\" height=\"349\"\u003e\u003c\/p\u003e\n\u003cp class=\"image-with-text__text image-with-text__text--caption caption-with-letter-spacing caption-with-letter-spacing--medium\"\u003eAdvanced\u003c\/p\u003e\n\u003ch2\u003eRotor Head System\u003c\/h2\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003eMachined from high-strength 7075-grade aluminum, the rigid rotor head provides maximum stability and precise control response. Optimized geometry and high-precision linkage deliver perfectly linear cyclic feedback, while the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1:1 control geometry\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures equal movement in all directions and a consistent, balanced feel — ideal for both aggressive 3D and precise F3C flight.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/7_8373da27-8e57-42b0-94e2-659e94addef7.webp?v=1763628564\" alt=\"\" width=\"463\" height=\"463\"\u003e\u003c\/p\u003e\n\u003cp class=\"image-with-text__text image-with-text__text--caption caption-with-letter-spacing caption-with-letter-spacing--medium\"\u003eModular Structure for\u003c\/p\u003e\n\u003ch2\u003eEasy Maintenance\u003c\/h2\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003eEngine maintenance is also easy, with the ability to remove the engine from the bottom without disturbing other assemblies in a matter of minutes. The engine cooling fan shroud can be independently removed by side and without disassembly of other parts.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/ff8886cc3b610929053cff47404e0baa.webp?v=1763628602\" alt=\"\" width=\"464\" height=\"449\"\u003e\u003c\/p\u003e\n\u003ch2\u003eQuick- Connect Canopy Lock System\u003c\/h2\u003e\n\u003cdiv class=\"image-with-text__text rte body\"\u003e\n\u003cp\u003eEasy connect canopy locks removing the need for safety pins with a much easier way to remove and mount the canopy.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/faea6213d26e73f8c91addd1a3e009b3.webp?v=1763628642\" alt=\"\" width=\"464\" height=\"346\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"XLPower Heli","offers":[{"title":"Default Title","offer_id":42123459985485,"sku":"XL55NK02","price":606.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0087\/9050\/7597\/files\/XL55NK02Nimbus550NitroV2Kit_1.png?v=1759221346","url":"https:\/\/www.helidirect.com\/products\/xlpower-nimbus-550-nitro-v2-kit-w-o-blades","provider":"HeliDirect","version":"1.0","type":"link"}