Xpert RC SI-2201 Standard Aluminum Case "Super Speed" Brushless Servo

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This is the Xpert RC SI-2201 Low Voltage (4.8~6.6V), Standard Size, High Strength Metal Gear, Digital Brushless Servo.

Features & Specifications:

  • 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
  • Aluminum middle case for optimized thermal dissipation.
  • 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

Dimensions: 40x37.80x20 mm

Weight: 62.50 g


  • @4.8V: .050 sec/60
  • @6.0V: .040 sec/60
  • @6.6V: .036 sec/60


  • @4.8V: 5.33 kg-cm (73.98 oz-in)
  • @6.0V: 6.66 kg-cm (92.44 oz-in)
  • @6.6V: 7.33 kg-cm (101.74 oz-in)

Matching Gear Set: XGS7900

Matching Case: XP-01