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Free shipping
Easy installation
1-year warranty
VAT included

Introducing the MTX PRO [4000W] Kit—the ultimate performance converter that pushes the boundaries of electric power. This professional system features a groundbreaking 4000W brushless motor delivering 110Nm torque and incredible speeds up to **80-90 km/h**, backed by premium 72V 20Ah LG/Samsung battery technology.
Built with military-grade waterproofing and advanced **60A FOC control system**, the MTX PRO [4000W] ensures uncompromising performance in any conditions. The MTX 39mm reinforced rim and heavy-duty components are engineered for maximum durability and power delivery.
For riders who demand absolute peak performance, the MTX PRO [4000W] Kit is your definitive choice for dominating any terrain.
Note: Speed capabilities shown are for off-road use only. Always ride responsibly and follow local regulations.
Free shipping to the US, UK, and EU countries. Orders ship from our US, UK, and China warehouses via DHL Express, FedEx, TNT, or airmail. For e-bike kits, the battery ships separately. Delivery typically takes 5–14 business days to most locations; remote areas may take longer.
Been using this kit for 3 months on my MTB in Peak District. The 4000W power is insane - climbs like a goat! Installation took about an hour with the included tools. Battery life is solid - I get around 45km of hard trail riding. Quality build and waterproofing held up great in typical UK weather. Worth every penny for serious riders.
Absolutely transformed my commute! Did 50 miles yesterday and still had juice left. The display is super clear even in bright sunlight. Installation was straightforward with the video guide. Love cruise control for long stretches.
Powerful kit but took some getting used to. The torque is no joke - start in low PAS levels! Battery charges pretty quick, about 4 hours. Only complaint is the throttle sensitivity needs some fine-tuning. Tech support was helpful though.
Using this on my fat bike for winter commuting. Handles snow and mud like nothing else. The 72V system gives amazing power when needed. The battery is still performing great after 4 months in cold weather. Solid build quality.
Perfect for my delivery work. The range is spot-on - I get about 50km per charge doing deliveries around the city. The walking mode is super helpful in tight spots. No issues in rain either.
Power is impressive but installation wasn't as easy as advertised. Needed a bike shop's help. Performance is great once setup properly though. I wish the manual was more detailed.
This thing rips on trails! The torque is unreal for climbing. Battery lasts longer than expected even with aggressive riding. The controller handles heat well even on long uphill sections. Well worth the investment for serious off-roading.
Fast shipping, great packaging. Using it on my 27.5" MTB and it's perfect. The display shows everything I need and the cruise control is brilliant for long rides. Getting about 60km range on moderate settings.
In the individual kit, you get everything you need to DIY your bike into an e-bike.
A 4000W powerful motor wheel, 48V-72V 60Amp FOC sinewave smart controller, 48V-72V TFT color display, 72V 20AH Lithium battery pack, 72V 5A Fast Charger, Twist Throttle with the key Lock, e-Brake levers and a good package with foam to protect all parts be safe.
In addition we provide free sweet service accessories, installation tools and additional parts.


In the individual kit, you get everything you need to DIY your bike into an e-bike.
A 4000W powerful motor wheel, 48V-72V 60Amp FOC sinewave smart controller, 48V-72V TFT color display, 72V 20AH Lithium battery pack, 72V 5A Fast Charger, Twist Throttle with the key Lock, e-Brake levers and a good package with foam to protect all parts be safe.
In addition we provide free sweet service accessories, installation tools and additional parts.
1. MTX 39 Double Wall Aluminum Alloy Strong Rim. Black Color
2. 4000w Brushless Direct Drive Rear Wheel, 6.8kgs weight.
3. Black Paint Spokes anti-rust 12G 2.6mm with copper Nipples.
4. Dropouts: 135-142mm. Two Motors: One is for a 7s threaded sprocket, and The other is for Cassete 8s/9s/10s/11s sprocket.
5. Fit Disc Brake.
6. 55+MPH max speed.
7. CE, ROHS certificates.
1. 84VV Full Charged Voltage
2. 5A Fast Charger is included.
3. Samsung 21700 50S cells
4. USB mobilephone Charging
5. ON/OFF Switch
6. Battery Indicator. Precent.
7. Triangle Black Plastic Case.
1. 48V-72V 50Amp FOC
2. Sinewave 12 mosfets Controller.
3. Waterproof, Glues Inside.
4. Quick Release Cable.
5. Over Heating Protection.
6. Easy to Install with Tape Ties.
1. Color Display Design.
2. Battery Power Indicator.
3. Running Speed, Average Speed, Max Speed.
4. Single Mileage, Total Mileage.
5. PAS Levers, Brake Signal, Throttle Signal.
6. Cruise Function, 6KM/H Walk Function, and so on.
Electric Brake Lever to cut off the power when you press it.
Easy installation、More sensitive 、more stable performance.
Typical range varies from 40-80km depending on your riding style. You'll get maximum range when cruising at moderate speeds with pedal assist. Aggressive riding at top speeds (80-90 km/h) will reduce range significantly. Factors like rider weight, terrain, and temperature all affect actual performance.
While we advertise a 50-minute installation time, most experienced riders complete it in 1-2 hours. We provide comprehensive tools and step-by-step video guides. First-time installers may want to schedule 2-3 hours or seek professional help for optimal setup.
The kit is engineered for standard MTB frames (26"-29") and fat tire bikes (20"-26"). Most modern mountain bikes and fat bikes are compatible. However, carbon fiber frames and ultra-lightweight bikes aren't recommended due to the power output. Contact us with your specific bike model for confirmation.
Using premium LG/Samsung cells, expect 800+ charge cycles over a 3-year lifespan with proper care. A full charge takes 4 hours 35 minutes. The intelligent BMS prevents overcharging and monitors cell health. The battery detaches easily for indoor charging.
The system is capable of 80-90 km/h on flat terrain. However, real-world speeds depend heavily on conditions, rider weight, and battery charge level. The 110Nm torque allows for impressive acceleration and hill-climbing ability. Remember: this kit is designed for off-road use only.
The brushless direct drive motor operates quietly compared to geared systems. Military-grade construction and waterproof design ensure durability. Most users report thousands of kilometers without issues when properly maintained.
The 3.5" TFT display allows full customization of power delivery, speed limits, and pedal assist levels. Intelligent cruise control maintains steady speeds, while the 6km/h walk assist helps in tight spaces. The controller can be fine-tuned for your riding style.
This high-performance kit is designed for off-road use. We require torque arm installation and recommend professional setup for optimal safety. Users should be aware of local regulations regarding e-bike power limits and usage areas.
Regular maintenance includes checking motor connections, ensuring battery contacts are clean, and inspecting the torque arm. The controller and battery systems are sealed and maintenance-free. We recommend periodic firmware updates for optimal performance.