Duotts C29 - Lite - 250W City E-Bike (With a Throttle!)

DUOTTS C29 Lite Electric Bike – Test Ride in Kruunuvuorenranta, Helsinki

Imagine this.

A newcomer is arriving at the joint test track for European e-bike manufacturers in Kruunuvuorenranta, Helsinki—right next to Finland’s longest bridge. The DUOTTS C29 Lite e-bike is rolled out of the transport vehicle, and the e-bike factory’s test team gathers around it.

At first glance: A lightweight frame. Large 27” wheels. A clean, practical design.

Then the start.

When you set off on the DUOTTS C29 Lite e-bike along the Kruunuvuorenranta waterfront trail, one thing immediately catches your attention: how natural it feels to ride. The 250 W motor provides exactly the right amount of power—not too much, not too little. The perfect balance for the city.

The test team is heading uphill.

And this is where many bikes fall short.

But not this one.

43 Nm of torque pulls the bike up smoothly without any jerking. The DUOTTS C29 Lite e-bike doesn't feel heavy, but rather manageable—as if it were doing the work for you, while still letting you stay in control.

Designed for the city—but ready for anything

In the city, the DUOTTS C29 Lite e-bike is in its element. Its top speed of 25 km/h makes it fully legal for use on EU roads, and the 5-level pedal assist adapts to your riding style in a fraction of a second.

But the real surprise comes when the route changes.

The gravel sections, uneven roads, and curbs in Kruunuvuorenranta don’t slow you down. The 85 mm front suspension absorbs bumps, and the wide 27.5” tires keep the ride stable.

At this point, the test team notes:

“This isn’t just a city bike. It’s a versatile electric bike for everyday use.”

Long range – drive farther without stress

The 36V 13Ah battery provides a range of up to 65 km with pedal assist. That means:

Commuting without worrying about charging
Weekend Runs Without Planning
the freedom to leave whenever you want

The DUOTTS C29 Lite electric bike doesn't limit you—it sets you free to get around.

Shimano drivetrain and a controlled riding feel

The Shimano 7-speed system makes riding smooth and predictable. The gears shift precisely, and when combined with the motor, the result is:

natural feel for the trail
controlled acceleration
Smooth driving in all situations

Whether you're riding in traffic or on a forest trail, the DUOTTS C29 Lite e-bike responds exactly as it should.

Safety and comfort in one package

160 mm disc brakes at the front and rear ensure reliable stopping power, even in wet conditions.
The ergonomic riding position reduces fatigue on longer rides.
The sturdy frame can support a load of up to 150 kg.

In addition:

Front and rear lights included as standard
solid steel fenders
sturdy rear rack (25 kg load capacity)

The DUOTTS C29 Lite electric bike is built for real-world use—not just to look good.

Lightweight feel, sturdy construction

Although the frame is sturdy, the ride feels light and agile. This makes the DUOTTS C29 Lite electric bike the perfect choice:

daily commute
for recreational driving
as a first electric bike
a reliable all-around bike

Why choose the DUOTTS C29 Lite electric bike?

Because it does everything right.

It doesn't try to be too much. It doesn't try to be too aggressive or too technical. It's well-balanced, reliable, and surprisingly capable.

When the test team returned the bike after the test ride, their comment was simple:

“I’d drive this every day.”

And that's exactly what this is all about.

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

DUOTTS C29 Lite – Official Specifications

Motor: 36V 250W brushless motor
Battery: 36V 13Ah lithium battery
Torque: 43 Nm
Gear system: Shimano 7-speed
Brakes: Mechanical disc brakes (160 mm front and rear)
Tires: 27.5” road tires (approximately 2.0–2.25 wide)
Frame: Steel frame
Charging time: 6–8 hours
Max speed: 25 km/h (EU-compliant)
Range: 70 km with pedal assist 40 km on electric power alone (practical estimate)
Maximum angle of ascent: approximately 30°
Max load: 150 kg
Weight: approximately 27.8 kg
Recommended rider height: 170–200 cm
Water resistance: IPX4
Display: Multifunction LCD display

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.