Duotts S26 Electric Fat Bike 1500W | Sähköpyörätehdas

Test Report on Kruunuvuorenranta:

“The Duotts S26 electric fat bike isn’t just a bike—it’s a riding experience that changes everything.”

When the Sähköpyörätehdas test team got to test ride Duotts’s new S26 model, we weren’t just testing the bike anymore— we were testing its limits. The limits of what an electric bike is capable of.

The test track is located in Kruunuvuorenranta, Helsinki, where the terrain ranges from beaches to steep gravel roads, rocky outcrops, and the city’s street network. If a bike can handle this, it can handle anything.

And the Duotts S26 electric fat bike?
It didn't just hold its own—it dominated.

🏞 Right at home in the wilderness—hills, sand, and rocky terrain

The ride began on rocky, sandy trails, where many e-bikes struggle.
The Duotts S26 electric fat bike, however, took off like an electric beast.
Two 750W motors—totaling 1500W— deliver incredible acceleration.
And when the 2 x 65 Nm of torque kicks in, it feels like you’re pedaling in zero gravity.

The 26×4.0-inch fatbike tires bit into the sand like a beast.
Tree roots and rocky terrain? A smooth ride.
The front suspension and rear shock absorber absorbed every bump—it felt like riding on air.

🏙 City driving? Easy, enjoyable, and impressive

After Kruunuvuorenranta, we headed toward Laajasalo— along the future Kruunusilta Bridge, which will connect the area to the city center. Even though the bridge isn’t open yet, the Duotts S26 electric fat bike was perfect for the urban environment.

The LED headlights brightly illuminate the road ahead.
The hydraulic 180 mm disc brakes stop the bike effectively and safely—even in the rain or on tram tracks.
Digital display, Shimano gears, phone charging port, ride mode selector button—everything is right at your fingertips.

Uphills? Forget about them.
The Duotts S26 electric fat bike will take you to the top with a smile.

🔋 A battery that takes you farther than you ever thought possible

In our test, the 48V 20Ah Samsung lithium-ion battery delivered an incredible range.
A range of 100–120 km on a single charge means you can ride for an entire week without worrying about running out of power.

You can remove and charge the battery anywhere—it's easy, safe, and perfect for everyday use.

💪 Choose between: one engine or full power

The Duotts S26 electric fat bike gives you a choice:
Will you use one motor for economical riding, or both at full power?

With the push of a single button, you can switch the driving mode to exactly what the terrain or your mood calls for.

📱 Smart details make driving a pleasure

This bike has everything a real e-bike needs—and more:

Shimano 7-speed drivetrain
Full suspension
Phone charging port
Rear Light and Luggage Rack
Clear and bright LCD display
High-quality components

🛒 Still thinking about it? This isn't a rational decision—it's an emotional one.

If you want an electric bike that performs in any situation, your choice is clear.
If you want a bike that makes people stop and ask, “What’s that?”
If you want to enjoy riding every day as if it were your first…

🚀 Duotts S26 electric fat bike – the king of electric bikes.
Buy it. Try it. Fall in love with it.

⚙️ Technical Specifications – Duotts S26 Electric Fatbike

• Motor: 2 x 750W brushless motors (total 1500W)
• Torque: 2 x 65 Nm
• Battery: 48V 20Ah Samsung lithium battery
• Range: 100–120 km
• Top speed: 25 km/h
• Charging time: approx. 6–8 h
• Brakes: Hydraulic disc brakes, 180 mm
• Gear system: Shimano 7-speed
• Tires: 26″ x 4.0″ fatbike tires
• Suspension: Full suspension (front fork + rear shock)
• Display: LCD, ride data and assist modes
• Ride modes: Single- or dual-motor drive via button
• Charging port: USB (phone charging)
• Lights: LED headlight, integrated taillight
• Maximum load: 150 kg
• Bike weight: 39.8 kg
• Recommended user height: 160–200 cm

We also want to share useful information about the world of e-bikes. If you’d like to learn more about e-bikes, their benefits, and how they can be used, I recommend checking out the following resources:

Network of Cycling Communities– Up-to-date information on cycling in Finland.
Traffic Safety– Tips for Safe Electric Biking.
Fillari Magazine– Articles and reviews on cycling and e-bikes.
Motiva– Information on sustainable transportation solutions.

I hope you find some useful information in these links!

Best regards,
The SähköpyöräTehdas Team

Motor: 2 x 750W hub motors (1500W total)
• Torque: 2 x 65 Nm
• Battery: 48V 20Ah Samsung lithium battery
• Range: 100–120 km
• Top speed: 25 km/h
• Charging time: approx. 6–8 h
• Brakes: Hydraulic disc brakes, 180 mm
• Gear system: Shimano 7-speed
• Tires: 26" x 4.0" fatbike tires
• Suspension: Full suspension (front fork + rear shock)
• Display: LCD, ride data and assist modes
• Ride modes: Single- or dual-motor drive via button
• Charging port: USB (phone charging)
• Lights: LED headlight, integrated taillight
• Maximum load: 150 kg
• Bike weight: 39.8 kg
• Recommended user height: 160–200 cm

Electric Bike Factory Warranty – We're Here to Support You

All electric bicycles come with a manufacturer's warranty that covers the most important parts as follows:

Frame: 10-year warranty against manufacturing defects.
Electric motor and its components: 2 years.
Battery: 2 years.
Other electrical components: 2 years.

The expert staff at Sähköpyörätehdas will support you throughout the entire warranty process, so you
don't have to worry. We'll handle everything for you directly with the manufacturer.

How we handle warranty issues on your behalf:

1. If a problem arises – Contact us at
If your electric bike develops a fault, contact Sähköpyörätehdas customer service immediately. You can
contact us by email, phone, or by filling out the warranty form on our website.
We ask that you describe the problem in detail and send any photos or
videos of the issue, along with your purchase information. This will allow us to assess the problem as quickly as possible.

2. Problem Assessment and Inspection
When you contact us, our expert will assess the situation and determine whether the problem is covered by the warranty
. If necessary, we’ll direct you to the nearest service center or arrange for your bike to be picked up
for a more detailed assessment. We’ll take care of everything for you—all you need to do is report
the problem and send your bike in for inspection.

3. Warranty Processing – We’ll handle communication with the manufacturer
Once we’ve confirmed that the defect is covered by the warranty, the Sähköpyörätehdas staff will handle
all communication with the manufacturer on your behalf. This includes submitting the necessary documents and information
as well as ordering any replacement parts. A warranty repair may involve replacing a part,
repairing the bike, or even delivering a new bike if the defect cannot be repaired.

4. Fast and Efficient Service
We ensure that the problem is fixed as quickly and professionally as possible. We’ll handle
all service-related arrangements for you, so you don’t have to worry about the details.
We’ll keep you updated throughout the process and notify you as soon as the service or repair is complete.

5. After a warranty repair – We’ll arrange for the return at
Once the problem has been fixed or the defective part has been replaced, we’ll notify you and arrange for the return or pickup of your bike at
We’ll make sure everything is in order before we return the bike to you at
.

6. Costs Covered by the Warranty
If the defect is covered by the warranty, repairs, part replacements, and return shipping are completely free of charge for you.
If the defect is not covered by the warranty, we will offer you a paid repair service and provide
a cost estimate before starting the work.

Sähköpyörätehdas Supporting You Every Step of the Way

We are committed to ensuring that your electric bike works flawlessly throughout the warranty period.

We'll handle all warranty matters with the manufacturer on your behalf, so you can focus on carefree
driving.

Sähköpyörätehdas's customer service is always ready to help you—just contact us at
and we'll take care of everything for you.

Maintenance and Assembly of Electric Bikes at the Electric Bike Factory

You can have your electric bike serviced either at our store in Helsinki or at service centers located elsewhere in Finland. You can easily find your nearest service location [here].

Assembling an Electric Bike

When you buy an e-bike from us, you can rest assured that we’ve made everything as easy as possible for you. Our e-bikes come 90% pre-assembled, which means you don’t have to worry about complicated assembly steps. For the final assembly, you’ll receive all the necessary tools and clear, step-by-step instructions to ensure your e-bike is ready to ride in just about 30 minutes.

However, if you need help at any stage, we’re here to assist you. You can contact us at any time, and we offer free video guidance via WhatsApp to ensure the assembly goes smoothly. If you’d still rather not assemble the 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 service should be performed after about one month of riding or when the e-bike has been ridden 100–300 kilometers. This initial service includes a thorough wash of the e-bike, a comprehensive inspection of the electrical components, adjustments to the brakes and gears, tightening of the spokes, lubrication of the chains, and a general condition check. This service 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 lubrication, and inspections and updates of all electrical systems. We recommend annual maintenance regardless of how often you use your e-bike, to ensure it remains in top technical condition and safe to ride all year round.

Prices for Maintenance and Repair Services

We keep our maintenance costs competitive. The price for an initial service starts at 90 EUR, and a comprehensive annual service costs 149 EUR (including 25.5% VAT).

If you'd like us to assemble your electric bike for you, you can bring it to our store; the assembly service costs 69 EUR.

Service and Assembly Appointment

You can schedule a service appointment or a pickup by calling our store directly or visiting our website.

If you can't make it to our store in Helsinki, you can take advantage of our service network, which covers all of Finland. [Click here] to see all of our service locations and their contact information.