The Bio Bike indicator set consists of the d-line indicator box, turn indicators for front and rear, switch and operating indicator or two flashing buttons, various indicator brackets and the necessary connecting cables.
In the configurator, these can be put together to match the bike

The d-line is the velorian blinkerbox for Bio Bikes, which comes with its own battery that can be charged either via USB-C or on the hub dynamo while riding.

Weight: 230 g incl. connection cable (Plug&Ride) and battery
Length: 15,5 cm
Width: 3,8 cm
Height: 4,2 cm

A commercially available Li-Ion battery is used, which can be purchased from many electronics retailers.
This battery can be replaced at the end of its service life. The charging electronics use intelligent software to ensure that the battery has a long service life.

The d-line has the same options as the e-bike turn indicator systems from velorian. Here, too, you can reconfigure between push-button and switch operation, 2 or 4 built-in indicators. The sound from the blinkerbox, which makes the indicator audible, can also be switched off and on.

The blinkerbox can either be attached to the frame with cable ties or to the frame eyelets of the bicycle frame. To optimise cable routing, the cables can be routed out of the blinkerbox as required, to the front and rear or all cables to one side.

The great strength of the Bio Bike blinkerset is its flexibility. We offer various Y-cable or cable splitter and various brackets for easy mounting on a bicycle, recumbent bike, cargo bike or tricycle.

Who is velorian?
velorian GmbH has been developing indicator systems for bicycles of all kinds since 2017 and has been selling them since 2021. velorian stands for quality, innovation, value and durability.
We use approved and tested motorbike indicators, brackets made of aluminium or stainless steel and connectors that are tried and tested in the e-bike sector and used by many manufacturers.

The d-line blinkerbox has been tested and improved over many years with the help of many test drivers.
A major challenge here was the vibrations on the bike, which put a strain on the electronics, the cables, the plug connections and the housing.
It sometimes took a long time to find the cause of certain problems and develop a solution.
The economic conditions in the last two years have been anything but helpful in realising the necessary improvements in the short term.
But bit by bit, all errors and problems were rectified.

October 2016

An idea is born. Using motorbike accessories, a turn signal system is mounted on a bike and powered by a battery.

The only thing missing is the recharging of the battery by the hub dynamo.

January 2017

A concept is written, developers are sought and found. The first version of the d-line is ready by the summer. Still without a housing. In autumn, you can drive with a temporary housing.

Turn signals for multi-track bicycles will be authorised in Germany in mid-2017 following an amendment to the StVZO.

2018

An initial housing version for the d-line is developed with designers from Berlin. Every millimetre of height is being fought for.
The basic design is retained for all subsequent design changes.

After the visit to EUROBIKE, a version for e-bikes, the e-line, is created from the d-line.

2019

velorian GmbH is founded with equity capital and subsidies. At the veloBerlin trade fair in Berlin, veloFrankfurt in Frankfurt am Main and veloHamburg in er... Hamburg, the d-line and the e-line will be presented.

As the e-line requires less investment and the e-bike is on the rise, this system will be developed ready for series production first.

2020

An office is found and the online shop is set up.

The packaging is designed and the blinkerset components are ordered.

Deliveries of blinkerset components are delayed, no dealer is willing to make appointments, all trade fairs are cancelled. The coronavirus lockdown freezes the economy.

More test drivers are being sought and found for the d-line.

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Oktober 2021

The last e-line components have arrived. We are starting delivery. velorian is on the road!

A support forum is set up for e-line customers.

The first general shortcomings are identified with the d-line. The plug connection in the housing, the battery compartment and the interference immunity are in need of improvement. A tone generator like in the e-line is still missing.

2022

The trade fairs are starting again. We are on the road and will be showing the solution for e-bikes in particular.

The first manufacturers begin to take an interest in the e-line and the warehouse is expanded. The e-line is revised.

The profits generated are also used to work through the list of defects from the d-line test results. It takes longer than expected.

2023

The electronics and housing of the d-line have been revised. The errors have been greatly reduced. Also with the e-line assemblies. There are fewer and fewer new entries in the support forum. Unfortunately, this also applies to incoming orders. Orders collapse in the second half of the year. The recession makes itself felt. The persistently weak turnover means there is no money for the rapid further development of the d-line.

We will be showing the current d-line at veloBerlin and elsewhere. The sound output has not yet been satisfactorily resolved. Further research will be carried out during the course of the year and everything will be revised once again.

velorian becomes a member of the industry association ‘Zukunft Fahrrad’

2024

The final test phase of the d-line has begun. There are no more problems. Whether at -11 degrees in winter or +30 degrees in summer. Whether left or right. It flashes.

The ongoing operation of the GmbH is taking up more and more time. We present our solution at 6 trade fairs in the first half of the year. Shipping and warehouse processes need to be revised and automated.

A further amendment to the German Road Traffic Licensing Regulations (StVZO) will make turn signals for all bicycles eligible for approval in Germany in mid-2024.

velorian becomes a member of the ‘Zweirad-Industrie-Verband’ (ZIV)

2025

The d-line is ready and sufficiently tested. The d-line in particular is shown at the trade fairs.

In the cyclingworld public award, the d-line achieved a place in the top ten in the accessories category.

Your order is without any risk. You can cancel your order both before you receive your device and up to 30 days afterwards. The warranty period only begins when the device arrives at your premises.

velorian bicycle turn indicators