Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)

Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)
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Price: $189.99
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The XPert KD1 Helicopter Cyclic servo builds on the successful platform of the Xpert R1 Servo. Global 3D 2017 Champion Kyle Dahl worked countless hours with Xpert in providing an incredible amount of performance that is critical to competition success. Speed and torque have been analyzed & modified by tweaking torque & speed curves  to ensure that even under the most extreme maneuvers the KD1 servo powers through it effortlessly. 

  • Developed & tuned by World Champion Helicopter Pilot, Kyle Dahl
  • Competition Winning Design - Global 3D 2017
  • Ultra High Responsive cyclic algorithm software
  • Quick release cable that allows easy and quick installation for all helicopters
  • Brushless motor design provides extremely high speed, top efficiency, and low power consumption
  • 4096 resolution and SIC (Single Integrated Circuit) for the highest performance and durability
  • Light weight design
  • All Aluminum case for the best thermal dissipation and durability
  • Strong Metal Gear
  • Glitch-free
  • Sophisticated error correction
  • High-Speed, High-precision 12-bit AD converter and CPU calculation
  • Fail safe
  • Over current protection
  • Over temperature protection
  • Start sonorant
  • Operating frequency up to 400Hz
  • Includes 165mm and 290mm leads

  • Dimensions: 40x37.80x20mm
  • Weight: 72g
  • Speed:
    • @6.0V: .086 sec/60
    • @7.4V: .07 sec/60
    • @8.4V: .062 sec/60
  • Torque:
    • @6.0V: 296.45 oz-in (21.43 kg-cm)
    • @7.4V: 366.85 oz-in (26.43 kg-cm)
    • @8.4V: 416.40 oz-in (30.00 kg-cm)

This product was added to our catalog on August 25, 2017

Verified Owner
Tuesday, Aug 18 2020 (11 months ago)
Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)
Purchased this combo kd1 + kd1t.

1. fist of all they (expert) changed specs on kd1t - previously they stated it has 15kg torque, but when I received it, on the box was described 7.5kg, after my complaints to 'amain' they updated their description... don't know when smth get wrong.
2. servo horns are terrible, they bent under low load from my finger, one even cracked on the initial setup. I really don't believe it can handle 30kg torque
3. after about 50 flies, I have noticed little play
4. I am almost unable to notice any difference between cheap align 610 that I had before with this servos...
5. They are expensive

1. wire management is awesome, you can install servo and then insert your wires
2. they look cool
3. they are silent!!!
4. I believe they are precise and probably has a lot of torque, nobody can confirm it...
Verified Owner
Monday, Jul 27 2020 (12 months ago)
Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)
5 stars, fast and torquey. If my fingers were as fast they'd be even better!
Verified Owner
Tuesday, Jul 7 2020 (about a year ago)
Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)
These are simply the best servos I have ever used in a helicopter. The days of repairing gears is gone due to the servo's over-current and over-voltage protection circuitry. Wire management is easier due to the different wire lengths that simply plug in to the servo and are competently held in place by a rubber boot. Response off center is noticeably fast and smooth. Simply put: these servos are the bomb! I love them!
Verified Owner
Sunday, Jun 9 2019 (about 2 years ago)
Xpert KD1 Cyclic Metal Gear Brushless Servo (High Voltage)
Wow worth every penny I mean it. We had high winds over the weekend so didn’t won’t to fly so my last day off
before the weekend ended more high winds my time was up.

I just took the heli out anyways to test out the new servos WOW!!

Great job on the KD1 servo line !!!
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