Servo Overview:
The KST X12-708 V8.0 Aluminum Micro Brushless Cyclic Servo is an advanced servo ideal for fuselage installations on F3J, F3F, and F3B models, as well as cyclic control in size 380, 420, and 450 helicopters. This innovative servo offers programmability and tuning options that let pilots customize performance to their exact preferences. Its sleek, dark-toned wiring and compact design deliver a modern, professional look while maintaining the strength and efficiency you expect from a high-end micro servo.
About the Metal Gear Servo
Performance & Precision
Featuring a brushless DC motor and hardened steel gears, the KST X12-708 provides monster torque up to 129.2 ounce-inches and speeds as fast as 0.07 seconds per sixty degrees. The CNC aluminum case ensures durability and a lightweight build, perfect for competitive flying and precision control. Additionally, this servo can be programmed to adjust frequency from the default 333Hz to 560Hz using a programming card like the KST Servo Programming Card V3 (KSTHP0023-0212 – sold separately).
Features:
- Brushless DC motor for efficiency
- Programmable for personalized tuning
- Hardened steel gears for durability
- CNC aluminum case for strength
Includes:
- (1) X12-708 V8.0 Aluminum Micro Brushless Cyclic Servo
- Servo Accessories
- Mounting Hardware
Specifications:
| Application | 380, 420, & 450 Helicopters |
|---|---|
| Input Voltage | 6.0-8.4V |
| Operating Speed @ 6.0V | 0.09sec/60° |
| Operating Speed @ 7.4V | 0.08sec/60° |
| Operating Speed @ 8.4V | 0.07sec/60° |
| Dynamic Torque @ 6.0V | 87.5oz-in (6.3kg-cm) |
| Dynamic Torque @ 7.4V | 119.4oz-in (8.6kg-cm) |
| Dynamic Torque @ 8.4V | 129.2oz-in (9.3kg-cm) |
| Pulse/Frequency | 333Hz (560Hz with programming tool) |
| Motor Type | Brushless |
| Output Shaft Spline | 25T |
| Gear Material | Hardened Steel |
| Dimensions | 0.91×0.47×1.08in (23x12x27.5mm) |
| Weight | 0.71oz (20g) |
This product was added to our catalog on August 11, 2025
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