Power HD Micro HD-1250MG 3.5k Metal Geared Servo
Servos are powered by the ESC's output to the receiver. If you're using a higher-strength servo than the ESC can support (usually greater than 20kg), you may experience 'brown-outs' where the radio signal can be interrupted and cause erratic driving. This can be helped by plugging a Glitch Buster into the receiver smoothing the current delivery. However, in some cases, you may need to install an external BEC.
- Total Height (A) = 35.4mm
- Body Width (B) = 31.3mm
- Below Mount (C) = 21.2mm
- Above Mount (D) = 14.2mm
- Total Length (E) = 42.7mm
- Total Width (F) = 16.3mm

Learn how to install a steering servo correctly to increase steering performance, and avoid stripping your servo gears out.
Servo | |
---|---|
Size: | Standard |
6V Torque kg/cm: | 3.5 |
6V Sec/60 Degrees: | 0.14 |
Servo Spline Count: | 25Tooth |
Gear Material: | Metal |
Waterproof Casing: | No |
Signal Type: | Analog |
Drive Motor Type: | Brushed |
Case Material: | Plastic |
Rotational Degrees: | 120° (Normal) |
Total Height: | 35.4mm |
Body Length: | 31.3mm |
Bottom to Under Mount: | 21.2mm |
Top to Under Mount: | 14.2mm |
Total Length: | 42.7mm |
Total Width: | 16.3mm |

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4 out of 5 stars
The unit has been pretty good, but the screw that goes into the cog at the bottom is tiny and too short. It has been really hard finding a replacement.