Fully Unlocked Firmware (45km/h): Removes the factory 25km/h software speed cap. Allows the motor to spin freely to its maximum RPM, achieving top speeds up to 45km/h using the throttle alone. (Note: For off-road or private property use).
21A Peak Current Delivery: Floods your 500W motor with a massive 21 Amps of power when you demand it, eliminating sluggish starts and powering through steep inclines with ease.
Red Heavy-Duty Motor Plug: Specifically fitted with the high-current red multipin connector required by 500W systems, ensuring zero melting or voltage drop under extreme loads.
Instant Throttle Response: Calibrated for immediate, aggressive throttle mapping. Feel the instant torque the moment you twist the grip, turning your e-bike into an electric moped.
Upgraded Thermal Casing: Built with a dense, oversized aluminum heat sink shell to manage the significantly higher temperatures generated during continuous 45km/h riding.
Product Name |
48V 21A Controller 45km/h |
Type |
Electric Bicycle Part |
Brand Name |
New Image |
Model Number |
V20EB-01B |
Suit for |
QM V20 Electric Bike |
Keyword 1 |
E-bike Kit |
Keyword 2 |
E Bike Accessories |
Feature |
Bicycle Spare Parts |
Application |
Other Bicycle Parts |
Weight |
0.35Kg |
Q1. What brands of electric scooter/e-bike spare parts do you supply? |
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A. We specialize in spare parts for leading brands including Xiao mi, Ninebot, Kukirin, Kaa bo, Vse tt, Dual tron, Niu, Zero, Mu kuta, Ino kim, OUXI V8, QM V20, Sur ron, etc. Our catalog covers over 100 of the world’s best-selling scooter and bike models, ensuring broad compatibility for your inventory needs. |
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Q2. What is your on-time delivery rate and customer feedback? |
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A. Our on-time delivery rate is 98%, with a 4.8/5 store rating on Alibaba. Over 75% of our European and American customers are repeat buyers. |
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Q3. Is Shenzhen New Image Technology a factory or trading company? |
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A. We are a verified Alibaba manufacturer with 9 years of experience, operating a 1,341㎡ factory and an annual capacity of 500,000+ units. Factory audits (onsite or virtual) are available. |
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Q4. How long is your delivery time? |
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A. Delivery times vary by item and order quantity. Benefit from our 85% in-stock availability, and for urgent needs, many hot-selling products are ready for immediate dispatch from our EU warehouse, reducing lead times and shipping cost significantly. |
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Q5. What is your afte-sales process work? |
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A. Email to [email protected] with a detailed issue report, include images, video and description. We guarantee a ≤2-hour response to all after-sales inquiries during working hours (GMT+8, Mon-Fri, 9:00-18:00). A dedicated account manager will provide a solution within 48 hours. |
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Q6. Are marketing materials available? |
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A. Yes. Once you place an order, our sales team will provide a suite of marketing materials, including product images, specifications to support your sales efforts. |
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Q7. How do you handle the issue if the products have some problems after received? |
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A. We will compensate the customers for loss by products or discount according to the product damaged actually, Except for man made. |
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Q8. Where is your overseas freight warehouse? |
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A. We have EU warehouses in Germany and Poland, and goods can be shipped from EU warehouses to your address. |
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