{"title":"RC Car \u0026 Buggy Servos","description":"\u003cp\u003eHeavy-duty, low-profile, and high-torque digital servos engineered for RC cars, buggies, crawlers, and drift chassis. Built with robust brushless motors, hardened metal gear trains, and ultra-fast transit speeds for pinpoint steering and throttle control.\u003c\/p\u003e","products":[{"product_id":"bls159-low-profile-brushless-hv-digital-servo-15kgf-cm-0-11sec-60degree-for-rc-car-buggy","title":"KST BLS159 Low Profile Brushless HV Digital Servo 15Kgf.cm 0.11sec for 1\/10 RC Cars \u0026 Buggies","description":"\u003cp\u003eBuilt for the relentless demands of 1\/10 scale competition RC, the \u003cstrong\u003eKST BLS159\u003c\/strong\u003e low-profile brushless HV digital servo delivers class-leading stall torque of 15 kgf.cm and a blistering 0.11s\/60° no-load speed at 7.4V. Powered by a maintenance-free brushless DC motor with hardened steel gears and a full CNC aluminum casing, the BLS159 is engineered to handle the high-impact, high-frequency steering cycles of 2WD\/4WD buggies, drift cars, and any low-clearance chassis where premium low-profile performance is non-negotiable.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrushless DC Motor:\u003c\/strong\u003e Eliminates brush wear for longer service life, lower heat generation, and higher sustained torque output compared to conventional coreless servos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Stall Torque:\u003c\/strong\u003e 15 kgf.cm stall torque at 7.4V provides exceptional steering authority and holding force under aggressive cornering and rough terrain impacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Form Factor:\u003c\/strong\u003e Compact 26.5mm height fits directly into low-clearance 1\/10 scale buggy and drift car servo mounts without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Voltage Operation:\u003c\/strong\u003e Native 6.0V–8.4V range for direct 2S LiPo compatibility, delivering full performance without a voltage regulator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Precision-cut steel gears supported by dual ball bearings resist flex and withstand repeated shock loads from jumps and curb strikes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Machined alloy housing ensures precise chassis fitment, maximum structural rigidity, and rapid heat dissipation during extended runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable \u0026amp; Soft Start:\u003c\/strong\u003e Customizable travel limits with soft-start protection to safeguard drivetrain linkages on power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 6.0V – 8.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless DC Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Potentiometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±50° (100° Total)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +65°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.0 × 20.0 × 26.5 mm (±0.2mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 55g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e 15 kgf.cm @ 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Torque:\u003c\/strong\u003e 4 kgf.cm @ 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo-Load Speed:\u003c\/strong\u003e 0.11 sec\/60° @ 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Speed:\u003c\/strong\u003e 0.15 sec\/60° @ 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStall Current:\u003c\/strong\u003e 3.85A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e 0.65A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/BLS159-01.png?v=1789530686\" alt=\"KST BLS159 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/BLS159-02.png?v=1789530686\" alt=\"KST BLS159 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/BLS159_V8.0_Technical_Specification.pdf?v=1789530768\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"BLS159 V8.0 Technical Specification\"\u003eBLS159 V8.0 Technical Specification\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50221070844154,"sku":null,"price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/BLS159-2.png?v=1788435256"},{"product_id":"ds1509mg-metal-gear-coreless-digital-low-profile-servo-12-8kgf-cm-0-07sec-for-aircraft-rc-cars","title":"KST DS1509MG Low Profile Coreless Digital Servo 12.8Kgf.cm 0.07sec for RC Cars \u0026 Aircraft","description":"\u003cp\u003eEngineered for high-demand RC cars, drift chassis, and scale aircraft, the \u003cstrong\u003eKST DS1509MG\u003c\/strong\u003e combines a compact low-profile footprint with uncompromising torque and lightning-fast transit speeds. Delivering up to 12.8 kgf.cm of stall torque and a blistering 0.07s\/60° response at 7.4V, this high-voltage coreless digital servo ensures razor-sharp steering precision, rapid centering, and reliable holding power under intense competitive conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Form Factor:\u003c\/strong\u003e Compact 26.5mm height easily fits low-clearance RC car chassis and tight aircraft compartments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoreless Motor Efficiency:\u003c\/strong\u003e Delivers rapid acceleration, smooth linear control, and instantaneous throttle-to-steering response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Precision-cut steel gears supported by dual ball bearings minimize backlash and withstand heavy shock loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Provides maximum structural rigidity and rapid thermal dissipation during extended runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Voltage \u0026amp; Programmable:\u003c\/strong\u003e Compatible with 4.8V–7.4V systems with programmable parameters, including soft start.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e DC 4.8V – 7.4V (Rated: 7.4V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Coreless DC Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e High-Precision Potentiometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±50° (100° Total)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +65°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.5 × 20.0 × 26.5 mm (±0.2mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 55g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStalling Torque:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e8.5 kgf.cm @ 4.8V\u003c\/li\u003e\n\u003cli\u003e10.7 kgf.cm @ 6.0V\u003c\/li\u003e\n\u003cli\u003e12.8 kgf.cm @ 7.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e0.10 sec\/60° @ 4.8V\u003c\/li\u003e\n\u003cli\u003e0.08 sec\/60° @ 6.0V\u003c\/li\u003e\n\u003cli\u003e0.07 sec\/60° @ 7.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/DS1509-02.png?v=1789452157\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/DS1509-01.png?v=1789452157\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/DS1509_V8.0_Specification.pdf?v=1789452298\" target=\"_blank\" title=\"DS1509MG Technical Specification\"\u003eDS1509MG Technical Specification\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50272730677498,"sku":null,"price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/DS1509MG-2.png?v=1789014719"},{"product_id":"sv4012-12-shv-4-pole-brushless-low-profile-servo-42-0kgf-cm-0-10sec-60-for-rc-cars-fixed-wings-robotics","title":"KST SV4012-12 SHV 12V Low Profile 4-Pole Brushless Servo 42Kgf.cm 0.10sec for RC Cars \u0026 Aircraft","description":"\u003cp\u003eDelivering an astonishing \u003cstrong\u003e42.0 kgf.cm of stall torque\u003c\/strong\u003e in a compact 25.5mm low-profile casing, the \u003cstrong\u003eKST SV4012-12\u003c\/strong\u003e redefines torque density for competitive RC racing cars, large-scale fixed-wing aircraft, and high-load robotics. Powered by an advanced \u003cstrong\u003e4-pole brushless DC motor\u003c\/strong\u003e, native 3S LiPo \/ 12V direct drive capability, hardened steel gears, and an expansive \u003cstrong\u003e200° total default travel angle\u003c\/strong\u003e, the SV4012-12 unleashes brutal holding power and a blisteringly fast 0.10s\/60° response without requiring heavy external voltage regulators.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Torque 4-Pole Brushless Motor:\u003c\/strong\u003e Advanced 4-pole rotor architecture delivers significantly higher electromagnetic torque density, cooler continuous operation, and ultra-smooth linear response under extreme steering and aerodynamic loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColossal 42.0 kgf.cm Torque in Low-Profile Form:\u003c\/strong\u003e At just 25.5mm in height and 50g, it easily installs into low-clearance 1\/10 and 1\/8 RC car chassis, thin wing bays, and compact robotic joints while delivering standard-size powerhouse torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuper High-Voltage (SHV) Direct Drive:\u003c\/strong\u003e Native 8.4V–13.0V operating range allows direct connection to 3S LiPo batteries — eliminating bulky BEC voltage regulators, minimizing weight, and simplifying airframe and chassis wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpansive 200° Default Travel:\u003c\/strong\u003e Wide ±100° (200° total) factory travel angle provides exceptional throw for crawlers, robotic articulation, and high-deflection aerobatic control surfaces (programmable endpoints).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Dual ball-bearing supported metal drive train withstands repeated curb collisions, rough track landings, and heavy hinge flutter without developing gear slop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Precision-machined aerospace alloy housing delivers maximum torsional rigidity, precise chassis fitment, and rapid heat dissipation during extended endurance racing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable \u0026amp; Soft Start:\u003c\/strong\u003e Customize travel limits, direction, and soft-start ramp profiles to safeguard linkages and drivetrains on power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SV4012-12 SHV Low Profile Brushless Servo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 12.0V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 8.4V – 13.0V (2S–3S LiPo Direct Drive)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e 4-Pole Brushless DC Motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±100° (200° Total, Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to +65°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.5 × 20.0 × 25.5 mm (±0.2mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 50g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e35.0 kgf.cm @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e40.0 kgf.cm @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e42.0 kgf.cm @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e0.16 sec\/60° @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e0.12 sec\/60° @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e0.10 sec\/60° @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStart Current:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e2.79A @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e3.65A @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e4.05A @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-02.png?v=1789630861\" alt=\"KST SV4012-12 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-01.png?v=1789630861\" alt=\"KST SV4012-12 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12_Technical_Specifcation.pdf?v=1789630873\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload SV4012-12 Technical Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50446484242682,"sku":null,"price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-2.png?v=1789014762"},{"product_id":"sv6010-12-hv-brushless-metal-gear-70kgf-cm-0-09sec-digital-servo-for-large-scale-rc-cars-rc-planes","title":"KST SV6010-12 SHV 12V Brushless Digital Servo 70Kgf.cm 0.09sec with 8mm Spline for Large Scale RC","description":"\u003cp\u003eEngineered for the absolute extremes of large-scale competition RC and heavy-duty industrial platforms, the \u003cstrong\u003eKST SV6010-12\u003c\/strong\u003e super high-voltage brushless digital servo unleashes a staggering \u003cstrong\u003e70 kgf.cm of stall torque\u003c\/strong\u003e and a rapid 0.09s\/60° transit speed at 13V. Built with an \u003cstrong\u003eoversized 8mm output spline\u003c\/strong\u003e, wear-free \u003cstrong\u003econtactless magnetic (Hall effect) position sensing\u003c\/strong\u003e, and native 3S LiPo \/ 12V direct drive capability, the SV6010-12 delivers unyielding holding power, absolute zero-drift centering accuracy, and indestructible geartrain reliability for 1\/5 and 1\/8 scale RC vehicles, giant-scale aerobatic aircraft, and high-load robotics.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMonstrous 70 kgf.cm Stall Torque:\u003c\/strong\u003e Delivers massive holding and steering authority under the heaviest centrifugal loads, severe track bumps, and massive giant-scale aerodynamic surface pressures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 8mm Output Spline:\u003c\/strong\u003e Oversized 8mm spline architecture resists extreme torsional shear forces that strip conventional standard splines, paired with an included heavy-duty aluminum servo horn.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWear-Free Contactless Magnetic Sensor:\u003c\/strong\u003e Hall-effect contactless position sensing completely eliminates physical potentiometer wiper wear, resistive track degradation, and vibration noise for permanent, millimeter-precise centering repeatability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuper High-Voltage (SHV) Direct Drive:\u003c\/strong\u003e Wide 8.0V–13.0V operating range allows direct 3S LiPo connection — bypassing separate BEC voltage regulators, cutting system complexity, and maximizing voltage delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Brushless DC Motor:\u003c\/strong\u003e Delivers cooler continuous operation, instantaneous torque delivery, and unmatched service life under punishing competition cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpansive 200° Default Travel:\u003c\/strong\u003e Wide ±100° (200° total) factory travel range offers extensive linkage throw for giant-scale control surfaces, crawler steering setups, and robotic articulation (programmable endpoints).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Precision-cut steel gears supported by dual ball bearings withstand violent shock loads, landing impacts, and aggressive steering lock-stops without developing backlash.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Precision-machined alloy case ensures rigid geartrain alignment and rapid thermal dissipation during grueling high-torque runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SV6010-12 Heavy-Duty Brushless Servo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Large-Scale (1\/5, 1\/8) RC Cars, Giant-Scale RC Aircraft, Robotics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 12.0V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 8.0V – 13.0V (2S–3S LiPo Direct Drive)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Spline:\u003c\/strong\u003e Oversized 8mm Spline (Includes Aluminum Servo Horn)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Contactless Magnetic (Hall Effect) Sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless DC Motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±100° (200° Total, Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +65°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.0 × 20.0 × 40.0 mm (±0.2mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 75g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e50 kgf.cm @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e60 kgf.cm @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e70 kgf.cm @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e0.13 sec\/60° @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e0.10 sec\/60° @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e0.09 sec\/60° @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV6010-12-02.png?v=1789631847\" alt=\"KST SV6010-12 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV6010-12-01.png?v=1789631847\" alt=\"KST SV6010-12 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV6010-12_Technical_Specification.pdf?v=1789631567\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload SV6010-12 Technical Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50446727479546,"sku":null,"price":128.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV6010-12-2.png?v=1789014771"},{"product_id":"x20-4208-brushless-contactless-6bb-hls-standard-servo-46kgf-cm-0-07sec-for-1-7-1-8-scale-on-road-or-off-road-rc-race-cars-aerobatic-airplanes-and-jets","title":"KST X20-4208 6BB Contactless Brushless Standard Servo 46Kgf.cm 0.07sec for 1\/8 RC Cars \u0026 Aircraft","description":"\u003cp\u003eEngineered as an engineering milestone in competition servo technology, the \u003cstrong\u003eKST X20-4208\u003c\/strong\u003e is the industry's first standard-size digital servo to combine an ultra-responsive \u003cstrong\u003e4-pole brushless DC motor\u003c\/strong\u003e, proprietary \u003cstrong\u003eHigh Life Span (HLS) hardened steel gears\u003c\/strong\u003e, and a revolutionary \u003cstrong\u003e6-ball-bearing (6BB) drive architecture\u003c\/strong\u003e. Delivering a massive \u003cstrong\u003e46 kgf.cm of stall torque\u003c\/strong\u003e, a blisteringly quick \u003cstrong\u003e0.07s\/60° transit speed\u003c\/strong\u003e at 8.4V, wear-free \u003cstrong\u003econtactless magnetic sensing\u003c\/strong\u003e, and \u003cstrong\u003eIP65 splash-proof sealing\u003c\/strong\u003e, the X20-4208 provides unbreakable steering authority and surgical centering accuracy for 1:7 and 1:8 scale competition buggies, truggies, on-road GT racers, giant-scale aerobatic planes, and turbine jets.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-First 6 Ball Bearing Architecture (6BB):\u003c\/strong\u003e Six precision ball bearings provide total radial and axial support across every gear shaft, eliminating geartrain flex, reducing rotational friction, and guaranteeing zero gear slop even under violent track impacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Torque 4-Pole Brushless Motor:\u003c\/strong\u003e Advanced 4-pole stator design produces significantly higher electromagnetic torque density, instantaneous throttle-to-steering response, and superior thermal efficiency during grueling endurance mains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWear-Free Contactless Magnetic Sensor:\u003c\/strong\u003e Hall-effect position sensor completely eliminates physical potentiometer wiper wear, resistive track degradation, and vibration noise — delivering permanent, millimeter-precise centering repeatability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary HLS Hardened Steel Geartrain:\u003c\/strong\u003e High Life Span (HLS) alloy treatment withstands extreme shock loads, high-traction curb strikes, and harsh off-road landings without stripping teeth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormidable 46 kgf.cm Torque \u0026amp; 0.07s Speed:\u003c\/strong\u003e Delivers unyielding holding force and instantaneous wheel positioning under extreme centrifugal cornering loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP65 Splash-Proof Construction:\u003c\/strong\u003e Sealed CNC aluminum housing protects delicate internal electronics and geartrain from wet tracks, mud spray, and abrasive track dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansive 200° Default Travel:\u003c\/strong\u003e Wide ±100° (200° total) factory travel angle provides exceptional throw for crawlers, large control surfaces, and robotic actuators (endpoints programmable).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable \u0026amp; Soft Start:\u003c\/strong\u003e Customize travel endpoints, direction, and soft-start ramp protection via KST USB Link\/programming box to protect linkages on power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*Note: Never connect or disconnect the servo to\/from a live, powered electrical system.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e X20-4208 Heavy-Duty Brushless Servo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 1:7 \u0026amp; 1:8 Scale On-Road \/ Off-Road RC Cars (Buggy, Truggy), Aerobatic Airplanes, Turbine Jets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 7.4V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 6.0V – 8.4V (2S LiPo Direct Drive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e 4-Pole Brushless DC Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel \/ HLS (High Life Span)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e 6 Ball Bearings (6BB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Contactless Magnetic (Hall Effect) Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e IP65 Splash-Proof\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±100° (200° Total, Programmable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to +65°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.0 × 20.0 × 40.0 mm (±0.2mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 80g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e38 kgf.cm @ 6.0V\u003c\/li\u003e\n\u003cli\u003e42 kgf.cm @ 7.4V\u003c\/li\u003e\n\u003cli\u003e46 kgf.cm @ 8.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e0.10 sec\/60° @ 6.0V\u003c\/li\u003e\n\u003cli\u003e0.08 sec\/60° @ 7.4V\u003c\/li\u003e\n\u003cli\u003e0.07 sec\/60° @ 8.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStall Current:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e8.80A @ 6.0V\u003c\/li\u003e\n\u003cli\u003e10.80A @ 7.4V\u003c\/li\u003e\n\u003cli\u003e12.30A @ 8.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/X20-4208-02.png?v=1789640900\" alt=\"KST X20-4208 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/X20-4208-01.png?v=1789640901\" alt=\"KST X20-4208 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/X20-4208_Technical_Specifcation.pdf?v=1789640901\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"X20-4208 Technical Specification\"\u003eX20-4208 Technical Specification \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50447648522490,"sku":null,"price":158.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/KST00953.png?v=1789014806"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/collections\/20260918165837_189_2.jpg?v=1789723856","url":"https:\/\/kstdigital.com\/collections\/rc-car-buggy-servos.oembed","provider":"KSTDigital","version":"1.0","type":"link"}