Holmes Hobbies HV150 High Torque Metal Gear Micro Crawler Brushless Servo (HV)

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Holmes Hobbies HV150 High Torque Metal Gear Micro Crawler Brushless Servo (HV)
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Price: $59.99

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Servo Overview:

The BLS HV150 Micro Servo is a high-performance solution tailored specifically for mini and micro scale R/C rock crawlers and shifting applications. Its exceptional features make it a perfect choice for applications in need of extreme durability, high torque, and lightning-fast speeds. Engineered with a high-quality brushless motor and circuitry, this servo delivers massive performance and efficiency, ensuring smooth and precise operation even in the most challenging terrains. With its ability to be powered from 5V to 8.4V, it offers versatility and compatibility with up to 2S (8.4V) high input voltage! Moreover, the servo comes equipped with an aluminum servo horn, providing added durability and reliability during intense crawling sessions.

The HV150 robust construction and advanced features are designed to tackle demanding off-road conditions. The servo boasts an alloy case that is water-resistant, ensuring protection against moisture and debris, while its internals are fully waterproofed for added durability. The all-steel machined gears further enhance its reliability, providing maximum strength and resistance to wear and tear. The all-aluminum case with side fins maximizes heat dissipation, ensuring optimal performance even during prolonged use. Whether you're navigating tricky rock formations or shifting gears, the HV150 servo offers the durability, precision, and versatility needed to conquer any challenge on the trail!

  • Depending on the vehicle, you may need an aftermarket servo horn.
  • BEC with 5 amp rating or higher is recommended


  • Hi voltage capable of up to 8.4V
  • High torque powerful brushless motor
  • Waterproofed internals
  • All steel machined gears
  • Rigid and durable aluminum servo horn
  • All aluminum case with side fins to maximize heat dissipation
  • Perfect fit for most micro crawlers and shifting applications


  • Speed:
    • @6.0V: 0.08sec/60°
    • @7.4V: 0.07sec/60°
    • @8.4V: 0.06sec/60°
  • Torque:
    • @6.0V: 106oz-in (7.6kg-cm)
    • @7.4V: 167oz-in (12.02kg-cm)
    • @8.4V: 174oz-in (12.5kg-cm)
  • Motor: Brushless
  • Operating Voltage: 4.8V-8.4V
  • Dimensions (LxWxH): 23x12x27.5mm
  • Weight: 24g (0.84oz)
  • Operating Spline: 25T


  • (1) HV150 High Torque Metal Gear Micro Crawler Brushless Servo
  • (1) (25T) Aluminum Micro Servo Horn and Mounting Hardware
  • (2) Holmes Hobbies Logo Decal

This product was added to our catalog on April 17, 2024

justin coulter
Verified Owner
Thursday, Jun 6 2024 (2 weeks ago)
Holmes Hobbies HV150 High Torque Metal Gear Micro Crawler Brushless Servo (HV)
This is the servo you are looking for…… being no stranger to the Holmes hobby products I was intrigued to see them break into the micro scene with an unstoppable servo. This will run on 5 volts no problem and will beat any other off the shelf servo like that but, I think it would be wasted if you not running it at the full 8.4 volts. At a competitive price with unmatched power in the micro servo range I cannot recommend this enough, although it is slightly longer than your regular micro servo you will have to get nifty and adjust accordingly. Well worth the price, internals are solid and can handle full 2s power with no glitching on top of 174oz of micro moving power those oversized tires and full aluminum upgrades won’t slow you down.