Power HD WB Series HV Brushless Servo for 1/5 & 1/6 Scale RC Cars | 100KG / 120KG / 150KG High Torque Waterproof
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Frequently Asked Questions
Which RC vehicles is the WB Series compatible with?
The Power HD WB Series is compatible with a wide range of 1/5 and 1/6 scale RC vehicles, including the Axial 1/6 SCX6, Losi 1/6 Super Baja Rey, Losi 1/6 Super Rock Rey, Arrma 1/5 Kraton RTR, Arrma 1/5 Kraton EXB, Arrma 1/5 Outcast RTR, and Arrma 1/5 Outcast. If you're unsure about fitment for your specific model, feel free to contact us before ordering.
What's the difference between the WB-100KG, WB-120KG, and WB-150KG - which one should I choose?
The three models differ in operating voltage and maximum torque output. The WB-100KG runs on 6.0V-8.4V (standard 2S LiPo) and delivers up to 100KG-cm - ideal for most 1/6 scale builds. The WB-120KG runs on 12.6V-16.8V (3S-4S LiPo) and delivers up to 120KG-cm, suited for larger 1/5 scale platforms. The WB-150KG runs on 16.8V-25.2V (4S-6S LiPo) and peaks at 150KG-cm for the most demanding heavy-duty 1/5 scale applications. Match the model to your battery system for best results.
Is the WB Series truly waterproof - can I run it in mud and wet conditions?
Yes. The Power HD WB Series features a fully sealed waterproof construction designed to handle mud, water splashes, and all-terrain conditions. It is built for outdoor bashing and crawling where exposure to the elements is unavoidable.
What type of motor and gears does the WB Series use - how durable is it?
All three WB Series models use a high-voltage brushless motor paired with a steel gear train. Brushless motors run cooler, respond faster, and last significantly longer than brushed alternatives. The steel gears provide maximum durability under the sustained high-load steering demands of large-scale RC vehicles.
Is the WB Series hard to install - do I need to modify my vehicle?
The WB Series uses a standard 15T horn spline, which is compatible with most 1/5 and 1/6 scale servo mounts without modification. Installation is straightforward for the listed compatible vehicles. We recommend verifying your chassis servo bay dimensions and horn spline compatibility before purchasing. If you need help, our team is happy to assist.
What's in the Box
- 1x Power HD WB Series HV Brushless Servo (WB-100KG, WB-120KG, or WB-150KG depending on selected variant)
- 1x Servo Horn Set
- 1x Mounting Screws
- 1x User Manual / Specification Sheet
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Description
Power HD WB Series HV Brushless Servo — Built for 1/5 & 1/6 Scale RC Domination
The Power HD WB Series delivers championship-level torque, speed, and waterproof reliability for the most demanding 1/5 and 1/6 scale RC platforms. Available in three torque configurations — WB-100KG, WB-120KG, and WB-150KG — these high-voltage brushless servos are engineered for Axial, Losi, Arrma, and compatible platforms where stock servos simply can't keep up.
Compatible Vehicles
- Axial 1/6 SCX6
- Losi 1/6 Super Baja Rey / Super Rock Rey
- Arrma 1/5 Kraton RTR / Kraton EXB / Outcast RTR / Outcast
Technical Specifications
WB-100KG
- Torque: 65.0 kg-cm (902.7 oz-in) @ 6.0V | 80.0 kg-cm (1111.0 oz-in) @ 7.4V | 100.0 kg-cm (1388.7 oz-in) @ 8.4V
- Speed: 0.14 sec/60° @ 6.0V | 0.10 sec/60° @ 7.4V | 0.09 sec/60° @ 8.4V
- Operating Voltage: 6.0V – 8.4V DC
- Weight: 208g (7.34 oz)
- Motor: Brushless | Gears: Steel | Horn Spline: 15T
- Max Current: 15A
- Frequency: 1520μs / 333Hz
- Dimensions: 59.5 x 29.5 x 54.4mm (2.34 x 1.16 x 2.14 in)
WB-120KG
- Torque: 80.0 kg-cm (1111.0 oz-in) @ 12.6V | 100.0 kg-cm (1384.3 oz-in) @ 14.8V | 120.0 kg-cm (1666.8 oz-in) @ 16.8V
- Speed: 0.14 sec/60° @ 12.6V | 0.12 sec/60° @ 14.8V | 0.10 sec/60° @ 16.8V
- Operating Voltage: 12.6V – 16.8V DC
- Weight: 212g (7.48 oz)
- Motor: Brushless | Gears: Steel | Horn Spline: 15T
- Max Current: 8A
- Frequency: 1520μs / 333Hz
- Dimensions: 59.5 x 29.5 x 54.4mm (2.34 x 1.16 x 2.14 in)
WB-150KG
- Torque: 100.0 kg-cm (1388.7 oz-in) @ 16.8V | 130.0 kg-cm (1804.3 oz-in) @ 21.0V | 150.0 kg-cm (2083.1 oz-in) @ 25.2V
- Speed: 0.13 sec/60° @ 16.8V | 0.11 sec/60° @ 21.0V | 0.09 sec/60° @ 25.2V
- Operating Voltage: 16.8V – 25.2V DC
- Weight: 213g (7.51 oz)
- Motor: Brushless | Gears: Steel | Horn Spline: 15T
- Max Current: 6A
- Frequency: 1520μs / 333Hz
- Dimensions: 59.5 x 29.5 x 54.4mm (2.34 x 1.16 x 2.14 in)
Why Choose the Power HD WB Series?
- Extreme Torque Output: Up to 150KG-cm — handles the heaviest 1/5 scale bashers and crawlers
- HV Brushless Motor: Faster response, longer lifespan, and cooler operation vs. brushed alternatives
- Waterproof Construction: Sealed for mud, water, and all-terrain abuse
- Steel Gear Train: Maximum durability under sustained high-load steering
- 15T Horn Spline: Industry-standard fitment for easy installation
- Three Voltage Tiers: Choose the right model to match your battery system (2S–6S LiPo)
Shipping Info
🏭 Fulfillment Warehouses
SoarSky operates warehouses in the US, Europe, and China. Orders are fulfilled from the nearest local warehouse. If local stock is unavailable, your order will ship from our China warehouse and international shipping times will apply.
💰 Shipping Rates
| Type | Condition | Cost |
|---|---|---|
| Free Shipping | Orders over $100 | Free |
| Standard Shipping | Orders under $100 | Based on weight & address |
| International Shipping | All international orders | Based on destination & weight |
⏱️ Dispatch & Delivery Times
| Region | Estimated Delivery |
|---|---|
| Domestic (US) | 5–10 business days |
| International | 10–15 business days |
* Customs processing may affect international delivery times.
🚫 Shipping Restrictions
Some remote areas may experience longer delivery times or limited shipping options. We will notify you if any issues arise.
📦 Order Tracking
Once your order ships, you will receive a confirmation email with a tracking number. Track your shipment via:
| Platform | Link |
|---|---|
| 17Track | www.17track.net |
| SoarSky Order Tracker | soarskyrc.com/pages/track-order-1 |
📬 Contact Us
If you encounter any issues such as damaged items or lost packages, please contact our customer service team as soon as possible and we will work to resolve it promptly.