Onesport OT05 Pro 250W City E-Bike | Sähköpyörätehdas

Onesport OT05 City E-Bike – When an E-Bike Is More Than Just a Bike

One windy but sunny morning, the joint test track for European electric bike manufacturers welcomed a special guest. Straight from Onesport’s own factory, a white-and-blue-gray marvel was delivered—one whose name had the test team’s eyebrows raised even before the test ride began: the Onesport OT05 city e-bike.

The location wasn’t just any asphalt stretch, but Kruunuvuorenranta in Helsinki—the intersection of city and nature, where steep hills, sandy paths, smooth city pavement, and the salty sea air come together. Here, the test team would find out whether this e-bike is just a stylish shell or a true powerhouse for everyday use.

⚡ First impression – a quiet power that brings a smile to your lips

As soon as we hopped on, everything else was forgotten. The Onesport OT05 city e-bike started up almost imperceptibly—but after that, nothing was imperceptible anymore. The 250W Ananda motor began propelling us forward so smoothly that the riding experience felt like more than just a mode of transportation—it was as if we were gliding through the city on our own momentum.

The LCD screen lit up and showed us exactly what we needed to know: speed, battery level, assist level—all at a glance. This bike doesn't just move. It communicates.

🏙️ The city wasn't a challenge—it was a playground

The test team was immediately thrown into the deep end: cobblestones, tram tracks, and unexpected traffic lights. But the Onesport OT05 urban e-bike handled it all with ease. The Shimano 7-speed drivetrain shifted gears silently, and the hydraulic disc brakes stopped the bike precisely—as if the bike could sense exactly when we wanted to stop.

The 700C*50C tires glided smoothly over the asphalt, but when we turned onto the narrow sandy paths of Laajasalo, the bike didn’t lose a bit of control. It’s not just a city cruiser—it’s an urban adventure bike.

⛰️ Uphill? No problem. Rough terrain? Just say the word.

We tried riding up toward the old oil terminal—and where many e-bikes start to sputter, the Onesport OT05 kept powering up without the slightest resistance. A 30-degree incline? Easy. Thanks to the motor and the smart torque sensor, the bike read the force we applied with our legs as if it were reading our minds and provided just the right amount of support.

Then we drove into the woods. The terrain was uneven, full of roots and small rocks, but the 80 mm front suspension made for a smooth ride. We didn’t test the comfort. We just settled in there.

🔋 One charge, many worlds

One of the bike’s greatest strengths is its built-in 36V 22.5Ah battery, which has a range of up to 130–140 kilometers. In a single day, we rode from downtown to the forest trails in East Helsinki, then back to Länsisatama, and finally, as dusk fell, back to Laajasalo—and the battery still had power left.

This isn't an electric bike that needs to be plugged in every night. This is a bike that keeps moving as long as you keep moving.

🛠️ Comfort Meets Practicality

The Onesport OT05 city e-bike offers features you didn’t know you needed—until they were there. The ergonomic butterfly handlebar provides multiple grip options and reduces hand fatigue. The adjustable seat (92–110 cm) ensures a comfortable riding position for riders of all sizes, and the sturdy aluminum rear rack can carry your backpack, shopping bags, or even a small backpack full of dreams.

📐 Technical Specifications – Onesport OT05 City E-Bike

Motor: 250W Ananda shaft motor
Battery: 36V / 22.5Ah, built-in
Range: 100–120 km
Top speed: 25 km/h
Ascent angle: Max 30°
Gear system: Shimano 7-speed
Suspension: 80 mm front suspension
Brakes: Hydraulic disc brakes with engine cut-off
Tires: 700C x 50C with reflectors
Display: LCD display (0–3 assistance levels)
Handlebar: Ergonomic butterfly
Rider height: 160–200 cm
Maximum load: 100 kg
Saddle height: 92–110 cm
Lights: Includes front and rear lights
Mudguards: Included at the front and rear
Stand: Removable aluminum stand

💬 Summary – When the test team is silent, it means the bike is speaking for itself

The Onesport OT05 city e-bike isn't just a bike. It's an experience. It turns the morning commute into a pleasure, an evening ride into an adventure, and the weekend into a little getaway from everyday life. It’s so balanced that you’ll forget you’re even moving—and so powerful that you’ll feel like you’re heading toward something greater.

Once you ride this bike, you'll never go back to a regular one. And that's a good thing.

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: 250W Ananda shaft motor
Top speed: (can be limited to 25 km/h)
Battery: 36V / 22.5Ah, built-in
Range: 100–120 km
Tires: 700C x 50C with reflectors
Brakes: Hydraulic disc brakes with engine cut-off
Gear system: Shimano 7-speed
User height: 150–200 cm

First, select a color: Gray, White

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.