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Item #:
230564707
QS Motor Liquid Cooled 138 V3 4000W 90H Mid Drive Motor with Gearbox and Better Temperature Resistance
Item #:
230564707
SLE 40198
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*All items will import from US
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Order now and get it around Tuesday, October 13
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Delivers a robust 13.5KW peak power for swift acceleration and strong performance in electric light motorcycles.
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What Stands Out
High Power Output
With a powerful 4000W output, the QS Motor Liquid Cooled delivers exceptional acceleration and performance, making it ideal for high-demand applications like electric bikes and performance vehicles.
Advanced Cooling System
The liquid cooling technology ensures optimal performance even under heavy load, preventing overheating and extending the lifespan of the motor, unlike standard air-cooled alternatives.
Enhanced Gearbox Design
The integrated gearbox enhances torque and efficiency, ensuring smoother rides and better hill-climbing abilities, setting it apart from competing mid-drive motors that lack this feature.
Product Details
| Brand Name | WITPKKL |
| Model Name | WITPKKL |
| Model | WITPKKL |
| Number of Items | 1 |
| Manufacturer | WITPKKL |
| Part Number | WITPKKL |
| Brand | WITPKKL |
| Country of Origin | This item will be imported from US |
| What is in the box | QS Motor Liquid Cooled... For more details, please check description/product details |
| Item Weight | 15.6 lbs (7.08 kg) |
| Date First Available | May 21, 2026 |
Who Should Buy?
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Mountain Bikers
Ideal for mountain bikers seeking high power and reliability on steep terrains and challenging trails.
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Long-Distance Commuters
Perfect for commuters requiring a robust motor for daily long rides with excellent temperature control.
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Electric Bike Enthusiasts
Great for e-bike enthusiasts wanting to upgrade their systems with powerful performance and advanced technology.
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Casual Riders
Not suited for casual riders who prefer lower speeds and simpler setups without complex components.
Product Description
QS Motor Liquid Cooled 138 V3 4000W 90H Mid Drive Motor with Gearbox and Better Temperature Resistance
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are the key features of the QS Motor Liquid Cooled 138 V3 4000W 90H?
Answer: The QS Motor Liquid Cooled 138 V3 4000W 90H boasts impressive features like a robust mid-drive design, advanced liquid cooling technology, and a 90H gearbox for enhanced efficiency. The liquid cooling system effectively manages temperature, preventing overheating during extended use. This motor is perfect for high-performance electric bikes, allowing for powerful acceleration and climbing steep hills with ease. -
Question:
How does the temperature resistance of this motor impact its performance?
Answer: The superior temperature resistance of the QS Motor 138 V3 ensures optimal performance even in challenging conditions. Its liquid cooling system helps maintain consistent performance during prolonged operation, reducing the risk of performance drops due to overheating. This makes it ideal for long-distance rides or situations where high power output is necessary, giving riders confidence in their motor’s reliability. -
Question:
What type of vehicle can be equipped with the QS Motor 138 V3?
Answer: The QS Motor Liquid Cooled 138 V3 is designed primarily for high-performance electric bicycles, but can also be adapted for electric scooters and some light electric vehicles. Its powerful 4000W output allows for high speed and torque, making it suitable for off-road biking or commuting in urban areas. This flexibility ensures it can address various user needs, whether for leisure or daily transportation. -
Question:
What is the installation process for the QS Motor 138 V3?
Answer: Installing the QS Motor 138 V3 typically involves mounting the motor onto the bike's frame and connecting it to the battery and controller. It’s essential to follow the manufacturer's instructions closely, ensuring all electrical connections are secure. Familiarity with basic bicycle maintenance will be beneficial, as it allows for a seamless installation and integration into your electric bike system. -
Question:
What are the benefits of using a mid-drive motor compared to a hub motor?
Answer: Mid-drive motors like the QS Motor 138 V3 provide better weight distribution and leverage from the bike's gears, resulting in improved climbing ability and handling. They also offer greater efficiency, particularly on varied terrain, as they utilize the bike's gears for optimal performance. This results in greater overall range and less strain on the battery, making it a preferred choice for serious cyclists. -
Question:
What makes the QS Motor Liquid Cooled technology advantageous?
Answer: The liquid-cooled technology in the QS Motor 138 V3 minimizes overheating risk, allowing for sustained high power output without performance degradation. This is crucial for riders who demand high performance during long rides or in steep terrains. Additionally, the cooling system extends motor lifespan and efficiency, benefiting users who prioritize reliability in their electric bike components. -
Question:
How does the 4000W output affect the riding experience?
Answer: A 4000W output significantly enhances the riding experience by providing rapid acceleration and the ability to conquer steep grades. Riders will notice improved responsiveness and a smoother power delivery, particularly beneficial in off-road conditions. This capability addresses the needs of both recreational riders looking for thrills and commuters who desire efficient travel. -
Question:
Can the QS Motor 138 V3 be used for off-road biking?
Answer: Yes, the QS Motor Liquid Cooled 138 V3 is well-suited for off-road biking due to its high torque and robust power output. Its design allows it to handle rugged terrains efficiently, providing a seamless riding experience over obstacles. Riders looking to explore trails or rough paths will appreciate the motor's performance capabilities and better heat management. -
Question:
Is the motor compatible with standard e-bike batteries?
Answer: The QS Motor 138 V3 is compatible with a range of standard e-bike batteries, but it’s crucial to ensure specific compatibility with voltage and power settings. Using the recommended battery type optimizes performance and efficiency. Understanding these specifications can greatly enhance the overall performance of your electric bike, allowing for a more enjoyable ride. -
Question:
Where can I buy QS Motor Liquid Cooled 138 V3 4000W 90H Mid Drive Motor With Gearbox And Better Temperature Resistance?
Answer: You can buy the QS Motor Liquid Cooled 138 V3 4000W 90H Mid Drive Motor at Ubuy. They offer a wide selection of high-quality electric bike components and accessories. Shopping at Ubuy ensures you have access to reliable products and customer service, making it a great choice for those looking to enhance their biking experience.
WITPKKL Complete Motors Editorial Review
QS Motor Liquid Cooled 138 V3 4000W 90H Mid Drive Motor with Gearbox and Better Temperature Resistance is designed by WITPKKL, boasting impressive features like a liquid cooling system for enhanced performance and durability. Weighing 15.6 lbs, this motor is suitable for various mid-drive applications, ensuring better temperature resistance during operation. Users have noted its excellent capabilities in providing reliable torque, making it ideal for both enthusiasts and professionals. When considering specific uses, performance can be optimized with this powerful motor, enhancing overall efficiency in your vehicle's design.
Customer Reviews & Ratings
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Pros
- Powerful 4000W motor for high performance
- Liquid cooling system improves durability
- Designed for various mid-drive applications
- Better temperature resistance during operation
- Lightweight at 15.6 lbs for easy integration
Cons
- Limited user reviews to gauge long-term reliability
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SLE 40198
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Features & Benefits
- 4000W rated power ensures consistent performance.
- Peak power of 13.5KW for impressive acceleration.
- Lightweight aluminum design reduces overall vehicle weight.
- IP67 waterproof rating for reliability in harsh weather.
- Liquid cooling system enhances durability in high-performance situations.
- Flux weakening technology improves climbing efficiency and regenerative braking.
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