🌪️ Koolux X9 electric fatbike – when a test drive turns into a conquest
When the Koolux X9 electric fat bike rolled into the joint test center of European electric bike manufacturers in Kruunuvuorenranta, Helsinki, the test team didn't know yet that they would soon be more on a roller coaster than a bike path. The fat tires, sturdy frame, and promising battery technology aroused curiosity – but the test ride whetted their appetite.
When the first pedaling occurred, the bike jumped from the gravel road to the forest path smoothly, but with a burst of power. The first comment came directly from under the helmet:
“Wow, what an electric bike, I want that!”
This wasn't just a test ride – it was an unforgettable riding experience. The Koolux X9 electric fat bike gave the test team a feeling they never wanted to forget.
⚙️ Koolux X9 electric fat bike – technical specifications
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Motor: 250W brushless hub motor
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Battery: 48V 15Ah removable lithium battery
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Range: 60–90 km with electric assistance
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Top speed: 25 km/h (limited)
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Tires: 20″ × 4.0″ fat tires
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Brakes: Hydraulic disc brakes front and rear
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Frame: Aluminum, foldable frame
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Display: LCD display on handlebar
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Gears: Shimano 7-speed transmission
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Suspension: Front suspension fork
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Lights: Bright LED front light
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Charging time: 5–7 hours
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Weight: approximately 30–33 kg
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Load capacity: up to 150 kg
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Protection rating: IP54 splash water protection
🛠️ Comments from the Kruunuvuori test team
“The Koolux X9 electric fat bike behaves on asphalt like an SUV – soft, but solid.”
“On the terrain, the bike leaps over obstacles like a light gazelle. The tires don’t even notice the roots.”
“The battery life is just right for everyday use and light adventures. No worries during the trip.”
“The frame feels sturdy and folds up easily if you need to take it with you in the car or on the train.”
🧠 Why choose the Koolux X9 electric fat bike?
Because the Koolux X9 electric fat bike is the perfect combination of power, comfort and practicality. Whether you're commuting to work, exploring forest trails or rolling down a beach boulevard, the Koolux X9 electric fat bike does it quietly, confidently and impressively.
See also
Women's electric bikes
Men's electric bikes
Electric mountain bikes
City electric bikes
Electric fatbikes
Commuting electric bikes
We also want to share useful information about the world of e-bikes. If you want to learn more about e-bikes, their benefits and uses, I recommend checking out the following resources:
I hope you find these links useful information!
Regards,
Electric BikeFactory Team
Manufacturer's warranty – you deal directly with the factory that sold the bike
The seller of an electric bike is the factory that manufactures or supplies the bike. The factory is the independent and sole seller of the electric bike store and is responsible for the product's delivery, warranty, and any possible defects.
Sähköpyörätehdas Suomi Oy is not a seller or guarantor of the electric bike. Sähköpyörätehdas offers you a separate customer service and technical system through which you can contact the factory's salesperson.
How to handle warranty issues
After ordering, you will receive personal usernames that allow you to chat directly with the factory salesperson.
If your e-bike has a fault:
- Log in to the service with your own usernames.
- Start a conversation with the factory that sold you the bike.
- Describe the problem as precisely as possible.
- Please include photos, videos, order number, and other necessary information requested by the factory.
- The factory salesperson will assess the matter and provide instructions for inspection, spare parts, repair, or other warranty processing.
Maintenance and assembly of electric bikes at the electric bike factory
Your e-bike can be serviced either at our Helsinki store or at service shops located elsewhere in Finland. You can easily find your nearest service point at [this link].
Assembling an electric bike
When you buy an electric bike from us, you can be confident that everything has been made as easy as possible for you. Our electric bikes are 90% pre-assembled, which means you don't have to worry about complicated assembly steps. For the final assembly, you will receive all the necessary tools and clear, step-by-step instructions to ensure that your electric bike is ready to ride in just around 30 minutes.
However, if you need help at any stage, we’re here to help. You can contact us at any time, and we offer free video tutorials via WhatsApp to help you get started. If you still don’t want to assemble your e-bike yourself, you can also bring it to our store and we’ll assemble it for you – this service is also designed to keep the process easy and hassle-free.
First aid
The first maintenance should be done after about a month of riding or after the e-bike has been ridden for 100-300 kilometers. This initial maintenance includes a complete washing of the e-bike, a comprehensive check of the electrical components, brake and gear adjustments, spoke tightening, chain oiling, and a general condition check. This maintenance ensures that your e-bike is in top condition and ready for safe riding.
Annual maintenance
Annual maintenance includes even more comprehensive procedures: battery testing, drivetrain cleaning, tire inflation and replacement, chain oiling, and checks and updates to all electrical systems. We recommend annual maintenance regardless of how you use your e-bike, to keep it in top technical condition and safe all year round.
Prices for maintenance and assembly services
We keep maintenance costs competitive. The price of initial maintenance starts at 90 EUR, and comprehensive annual maintenance costs 149 EUR (incl. VAT 25,5%).
If you want us to assemble your e-bike for you, you can bring it to our store, and the assembly service costs 69 EUR.
Maintenance and assembly booking
You can book maintenance or assembly by calling our store directly or visiting our website.
If you are unable to get to our Helsinki store, you can take advantage of our service network covering the whole of Finland. [Click here] to see all our service points and their contact information.