We, the company Hermann Hartje KG, are a wholesaler of items including bicycles and bicycle parts. Our products are sold exclusively through retailers. You can find your closest specialist retailer in the section “Dealer search“.

Please use the section “Dealer search” and personally contact your specialist retailer, who will be more than happy to help you with this.
If there is no dealer in your vicinity, who holds the bike in stock you wish to see/test ride, you can send as a message via the contact form. We will then advise you of a specialist retailer as soon as possible.

The permissible total weight of our 26 and 28 inch models is 130 kg (24″ 80 kg / tandem 180 kg) . This figure refers to the rider and luggage, including the weight of the bike. The ‘XXL’ models are the exception here, as these have a total permissible weight of 170 kg.

There are no precise guide values about this. Battery manufacturers only give an indication about the highest possible number of ‘full charging cycles’ (e.g. BOSCH guarantees 500 full charging cycles) before the capacity decreases.
However, this is dependent on a variety of factors such as storage, usage, outside temperature, etc. The battery’s age also plays an important role here.

Additional information can be found in the Service section.

Your first point of contact is your specialist retailer. He/she will be able to inspect your bike and contact our Service department where required.
Please understand that e.g. fault diagnostics via e-mail or phone are not always possible.

Additional information can be found in the Service section.