Built-in weight metal with firing parts to achieve recoil

5V) may not be included in the package

Motor Limit: 3S LiPo: kV= 4000 (3665) / *4S LiPo: kV= 2600 (4268) * You must derive the correct final drive ratio (FDR) of your vehicle before pairing a 4268 motor with a 4S LiPo battery or ESC and or a motor will be overloaded

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KO PROPO - RSx4S-one10X Servo with 4 Selectors Batteries Alkaline Built-in weight metal with firingFeatures: The hard alumite aluminum gear Coreless motor Dual ball bearings The hard servo gear shaft The aluminum heat sink middle case Black cable Gold plated connector Serial Compatible HCS Compatible Specifications: Torque: 12. 5Kg cm Speed: 0. 09sec 60deg(@7. 4V) Torque: 11. 8Kg cm Speed: 0. 10sec 60deg(@6. 0V) Dimensions: 40. 5x26x21mm (Low Profile) Weight: 50. 5g Operating voltage: 6. 0~7. 4V (Lipo,Life,Ni MH)