FAQ

Find answers to the most common questions here—quick, clear, and to the point. Whether you need clarification or have a last-minute concern, we’ve got you covered.

Which battery should I take? The standard 7Ah/252Wh or the extra power 10Ah/360Wh?

For our BZEN Bikes you have the choice between our standard battery with 7Ah/252Wh and the extra power with 10Ah/360Wh. Depending on the terrain and assist mode used, the 252Wh battery offers assistance for 60-75 km and is perfect for your city rides. The 360Wh battery has 50% more power and can provide assistance up to 120 km. It is therefore useful when you regularly want to cover longer distances.

The 10Ah/360Wh adds 600 grammes to the bike versus the 7Ah/252Wh battery.

What is the battery capacity and which range can I expect with it?

For our BZEN Bikes you have the choice between our 7Ah/252Wh Li-ion battery, which is perfect for the city and the extra power Li-ion battery with 10Ah/360Wh. Depending on the terrain and assist mode used, the 7Ah/252Wh battery offers assistance for 60-75km and is perfect for your city rides. The 10Ah/360Wh battery has 50% more capacity and can provide assistance for 90-120 km. It is therefore useful when you regularly want to cover longer distances.

Both Li-ion battery types are made with the latest available technology and use newest technology cells. Combined with a high performance BMS (battery management system) this enhances the riding comfort and also guarantees a longer lifespan of our batteries.

How do I charge the battery and how often should I do it?

To charge the battery, you must use the appropriate charger that is provided with the bike. You should simply connect the charger to any regular power plug (220 / 230 V AC) and to the bike.

The battery provides your bike with a range of electric assist up to 75 km with the 7Ah/252Wh or up to 90 km with the 10Ah/360Wh battery. We recommend you to charge your battery when it reaches 30-50% charge. It is always better to not let your bike fully discharge. But don’t worry, if this happens this is not a problem. When the battery is at 50% charge, it will require only 1 hour to 1.5 hours to fully recharge your battery (for the 7Ah). When the battery is completely empty, it takes about 3 hours (for the 7Ah)

Our charger will automatically stop charging when the battery is full. There is no risk of overcharging the battery when you forget to unplug it. The battery control system also protects it from undercharging.

However, please make sure to charge your bike every six to eight weeks when you don’t use it. This will increase its lifespan considerably.

Please also not that it is important to avoid charging the bike in sub-zero temperatures.

Can the battery be repaired or replaced?

Yes, the integrated battery can be replaced and repaired if this is necessary. Our bikes and their frames are designed in such a way that every professional bike shop as well as our official service centers can easily remove and replace the battery. If any problem occurs within the two-year guarantee period, the costs for it will be covered by BZEN.

It is hence also possible to get a new and fresh battery as well as to switch from the standard 7Ah/250Wh to the more powerful 10Ah/360Wh battery. Please contact our customer support via support@bzenbikes.com for further information in this regard.

Which drivetrain should I choose? The traditional 9-speed derailleur from Shimano or the single speed belt drive from Gates?

Belt drives have the great advantage of being almost maintenance-free. In addition, they are lighter, quieter and cleaner than a derailleur. In short words your clothes don’t get any drivetrain dirt on them. In addition, this form of drive is less complex and has a longer life. The downside is that you can’t shift between different gears, which can require a bit more effort from you on longer climbs.

Derailleurs have the advantage of giving you more flexibility when going uphill, as you can choose the gear that suits you best – with as well as without motor assistance. Also, any mechanic knows how to fix them. On the other hand, a chain is dirtier, heavier and requires more maintenance (e.g., cleaning, applying new lubricant, etc.).

Bottom line: if you live in a hilly region and like to do some longer tours, a derailleur is more advantageous. However, if you live in a flatter region and use your bike primarily for commuting/riding around town, the Gates belt drive is a good choice.

It’s best to just try it out at one of our BZEN Ambassadors or official service partners: test ride | BZEN Bikes

How does the motor assist and what is a torque sensor?

The torque sensor of our e-system measures the power that you exercise on the pedals and at what frequency you pedal. He then adapts its assistance accordingly. The assistance will increase steadily along with the pedalling force.

When it becomes more difficult to pedal, for instance due to a hill, or when you push harder to increase your speed, the motor will recognize that you have a harder time to ride or you want to go faster and will increase its assistance.

Because the power output increases with the pedalling force, our bikes convey a very intuitive riding sensation.

What is the maximum weight load allowed on BZEN Bikes?

BZEN bikes are designed for a maximum weight load of 140 kg. The maximum weight load is derived from the weight of rider, bicycle gear (helmet, panniers, shoes, clothes) and luggage.

How will the bike be delivered? And do I need tools to build up my bike?

Your bike will be ready to ride in a minute. Simply take your BZEN bike out of the delivery box, take off all the protections, attach the pedals, fix the handlebar, and adjust the saddle to your size and you are ready to GO. For the assembly of the bikes, you’ll need only 2 or 3 regular tools depending on the bike model. One Allen key number 4 or 5 and a flat wrench 15. These necessary tools will be delivered along with the bike. That’s it!

The instructions can be found on our website by scanning the QR code on the delivery box or directly in Bike Manual (https://support.bzenbikes.com/manuals-instructions/bike-manual-2022-23/)

Our team tests every single bike before packing them with care. Nevertheless, if you see that your bike has been damaged during transport or if you observe a manufacturing fault, please contact our customer support directly via our contact form . We will assist you and resolve the problem as quickly as possible.

Is it true that BZEN bikes are handcrafted bicycles made in Europe?

Yes. BZEN is one of the very few bike brands that designs, engineers and assembles their bikes at their very own workshop in Europe. The workshop is located in Masovia, Poland. 

We are proud at BZEN to make European bicycles.

Because our bicycles are handcrafted in Europe, our engineers fully optimized the frame and each of the components to refine their integration, enhance their performance and reduce the bike weight.

Do you need more information? Check our FAQ page (https://support.bzenbikes.com) or contact us directly via Contact Form. We’ll be happy to hear from you.