{"product_id":"yikong-yk4084-pro-brushless-1-8-scale-bj212-crawler-truck-green-2s-3s-lipo","title":"Yikong YK4084 Pro Brushless 1:8 Scale BJ212 Crawler Truck Green - 2S \u0026 3S LiPo","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Yikong YK4084 Pro is a large-scale 1:8 4WD brushless rock crawler combining serious trail capability with an officially licensed BJ212 scale body. Built around Yikong's low centre of gravity crawler platform, the YK4084 Pro features front and rear portal axles, remotely operated differential locks, a two-speed transmission and a Hobbywing brushless power system, making it equally at home tackling technical climbs or covering ground on the trail.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Pro version is powered by a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHobbywing 1800KV brushless motor and ESC combination\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, replacing the brushed power system fitted to the standard YK4084. The brushless system supports \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2S and 3S LiPo batteries as well as 6-9 cell NiMH packs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing smooth low-speed control together with the additional efficiency and performance expected from a brushless crawler setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWeight distribution has been carefully considered throughout the chassis design. The motor sits \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e32mm further forwards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and its centre of gravity is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e13.8mm lower\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, while the battery tray has been moved \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70.5mm forwards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Placing more of the drivetrain and battery mass lower and towards the front axle improves stability on steep climbs and helps keep the front tyres loaded when tackling technical sections.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe remotely operated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etwo-speed transmission\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows the driver to select low range for controlled crawling or high range for faster trail driving directly from the transmitter. Front and rear differential locks are also remotely controlled, giving the driver maximum traction when negotiating difficult obstacles while retaining the ability to unlock the differentials for easier turning on less demanding terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFront and rear \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eportal axles\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e increase drivetrain clearance and help improve the YK4084 Pro's ability to pass over rocks, roots and other obstacles without relying on excessively large tyres. The chassis itself uses CNC-machined metal frame rails, while CNC aluminium adjustable oil-filled shock absorbers provide controlled suspension movement and allow the suspension setup to be tuned to suit different terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSteering is handled by a powerful \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25KG metal gear servo\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing the torque required to control the large 135mm crawler tyres when loaded against rocks or other obstacles. The high-traction IIR rubber tyres measure 50mm wide, giving the YK4084 Pro a substantial footprint for loose and uneven surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eScale detail is another major part of the YK4084 Pro. The officially licensed BJ212 body features transparent windows and a full-scale interior, while a complete remotely controlled LED lighting system adds further realism for trail driving. At more than 600mm long and weighing approximately 4.2kg, this is a noticeably larger and more substantial crawler than a conventional 1:10 model.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLarge 1:8 scale 4WD RC rock crawler\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOfficially licensed BJ212 scale body\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHobbywing 1800KV brushless motor and ESC combination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with 2S and 3S LiPo batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlso supports 6-9 cell NiMH batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote-controlled two-speed transmission\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh and low transmission ranges\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote front differential lock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote rear differential lock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFront and rear portal axles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUltra-low centre of gravity transmission design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptimised transmission gearing for crawler use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCNC-machined metal chassis rails\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCNC aluminium adjustable oil-filled shock absorbers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowerful 25KG metal gear steering servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-traction IIR rubber crawler tyres\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarge 135mm diameter tyres\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTransparent body windows\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull-scale interior\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRemote-controlled full LED lighting system\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSize and weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eScale: 1:8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLength: 607mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWidth: 290mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeight: 300mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWheelbase: 370mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGround clearance: 85mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVehicle weight: approximately 4.2kg\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTyre diameter: 135mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTyre width: 50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's in the box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eYikong YK4084 Pro 1\/8 4WD Brushless RC Crawler\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2.4GHz radio transmitter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eOPTIONAL \u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e2S 7.4V or 3S 11.1V battery and matching USB charger (select battery type\/quantity from dropdown choice)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YiKong","offers":[{"title":"RTR Truck Only - No Battery\/Charger \/ 1","offer_id":58464223363446,"sku":"YK4084-G","price":399.99,"currency_code":"GBP","in_stock":true},{"title":"2S 7.4V 5200mAh \u0026 USB Charger \/ 1","offer_id":58464223396214,"sku":"YK4084-G","price":424.99,"currency_code":"GBP","in_stock":true},{"title":"2S 7.4V 5200mAh \u0026 USB Charger \/ 2","offer_id":58464223428982,"sku":"YK4084-G","price":444.99,"currency_code":"GBP","in_stock":true},{"title":"2S 7.4V 5200mAh \u0026 USB Charger \/ 3","offer_id":58464223461750,"sku":"YK4084-G","price":459.99,"currency_code":"GBP","in_stock":true},{"title":"3S 11.1V 5200mAh \u0026 USB Charger \/ 1","offer_id":58464223494518,"sku":"YK4084-G","price":464.99,"currency_code":"GBP","in_stock":true},{"title":"3S 11.1V 5200mAh \u0026 USB Charger \/ 2","offer_id":58464223527286,"sku":"YK4084-G","price":434.99,"currency_code":"GBP","in_stock":true},{"title":"3S 11.1V 5200mAh \u0026 USB Charger \/ 3","offer_id":58464223560054,"sku":"YK4084-G","price":492.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/7918\/9462\/files\/20250902142828_499_20.jpg?v=1786805609","url":"https:\/\/www.seriousrc.co.uk\/products\/yikong-yk4084-pro-brushless-1-8-scale-bj212-crawler-truck-green-2s-3s-lipo","provider":"SERIOUS-RC ","version":"1.0","type":"link"}