JR PROPO S8911 Big Block BL 2K HV Servo - High Torque, Digital, Brushless, Standard

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Sale price$219.99
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The S8911 BL 2K takes the spot at the top of JR PROPO's lineup for a reason. With over 800oz-in of torque and rated speed at 0.13sec/60° at 7.4V it is truly without equal in the JR PROPO lineup. This servo can lift a two liter Coke bottle 10 inches off the ground at the end of a ruler before you can say "WOW!"  

The Big Block Difference
Reinforced and redesigned top case and gears make the servo more durable than ever. The new design helps prevent wiggling pins inside the top case which would create gear gap during flight and would be a cause of damaged gears in extreme (we're talking really extreme) scenarios.

JR PROPO is Back
JR PROPO has always been known for quality. They are truly one of the all time great brands in RC flown by world champions in just about every discipline you can image. Now, with new ownership to lead them into the future combined with the winning mentality of the past, JR PROPO is poised to once again impress the true meaning of Japanese quality and precision upon the world of modeling.


  • Specially designed brushless motor 
  • Programmable with the JR PROPO XBUS 2K Servo Programmer w/ Servo Sync Firmware
    • Compatible with the industry leading JR PROPO servo sync firmware, which matches the movement of a set servos attached to one control surface over 120 separate points
    • Adjustable Endpoint, Neutral, Rotation Angle (120°/150°/180°), Gain, Holding, Dumping, Dead Band, Boost
  • Metal gears forged from Japanese "Super Steel" 
  • Dual ball bearing support on the output shaft
    • Oversized upper bearing 12x6mm 
    • Bottom bearing 10x6mm
  • Standard sized case drops in perfectly to most ARF servo mounts
  • 2K firmware verifies the position of the servo 2,000 times/second
  • 100% CNC Aluminum case for the perfect balance of lightness, strength, and heat dissipation 
  • Beautiful mixture of anodized aluminum and polished aluminum accents. RC jewelry!



    [6.6V] 51.7 kg-cm / 718 oz-in
    [7.4V] 58.0 kg-cm / 805 oz-in
    [8.4V] 65.8 kg-cm / 914 oz-in


    [6.6V] 0.15 sec/60°
    [7.4V] 0.13 sec/60°
    [8.4V] 0.11 sec/60°


    85.5 g / 3.02 oz

    Dimensions (LxWxH)

    35 x 20 x 41.5 mm
    1.38 x 0.79 x 1.63 in

    Operating Voltage

    4.5 V - 8.5 V

    Servo Lead Length

    300 mm
    11.8 in

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