We feel happy you want one.
Leave us a massage and we will inform you as soon as the first Trenux becomes available early in spring 2019.

biking anywhere at anytime

for your healthy future

no matter, if you want to go shopping after work or meet your friends at the beach – with Trenux you can have everything with you and live a healthy life.

discover your city

in unlimited freedom

don’t wait for the bus or spend endless time searching for parking space – with Trenux you are more flexible and travel faster through the rush hour.

environmentally friendly life

by considerate treatment

efficient and economical transportation with a smart system – with Trenux you are on the way towards a green city.

Image not loaded

biking anywhere at anytime
for your healthy future

no matter, if you want to go shopping after work or meet your friends at the beach – with Trenux you can have everything with you and live a healthy life.

Image not loaded

discover your city
in unlimited freedom

don’t wait for the bus or spend endless time searching for parking space – with Trenux you are more flexible and travel faster through the rush hour.

Image not loaded

environmentally friendly live
by considerate treatment

efficient and economical transportation with a smart system – with Trenux you are on the way towards a green city.

Image not loaded

no matter, if you want to go shopping after work or meet your friends at the beach – with Trenux you can have everything with you and live a healthy life.

Image not loaded

don’t wait for the bus or spend endless time searching for parking space – with Trenux you are more flexible and travel faster through the rush hour.

Image not loaded

efficient and economical transportation with a smart system – with Trenux you are on the way towards a green city.

Image not loaded

A cycle trailer as your daily accompanist


Trenux – a cycle trailer which can always be with you and not limit the flexibility of your bicycle.

Thanks to an innovative folding mechanism we are able to combine a cycle trailer and rack in one product.
In comparison to bulky cargo bikes or narrow bicycle bags, Trenux offers the ideal type of transportation for all situations: for the weekly shoping, searching for a parking space, or at the barbecue with friends.
In seconds the bicycle rack unfolds into a cargo trailer. The trailer is ready to use and after you are done it disappears in its storing position over the bicycle’s rear wheel again.

Bicycle: © Javier Olvera

Image not loaded

A cycle trailer as your daily accompanist


Trenux – a cycle trailer which can always be with you and not limit the flexibility of your bicycle.

Thanks to an innovative folding mechanism we are able to combine a cycle trailer and rack in one product.
In comparison to bulky cargo bikes or narrow bicycle bags, Trenux offers the ideal type of transportation for all situations: for the weekly shoping, searching for a parking space, or at the barbecue with friends.
In seconds the bicycle rack unfolds into a cargo trailer. The trailer is ready to use and after you are done it disappear in its storing position over the bicycle’s rear wheel again.

Bicycle: © Javier Olvera

Two bottle crates, a suitcase or four flower boxes fit inside the unfolded Trenux. Any cargo is held in place by the trapezium shape and the side rail. Additional straps tie-down the cargo.

 

weight: 5 kg (11 lbs)
capacity: 40 kg (88 lbs)
cargo area: 62 x 42 cm
(24 x 17 inches)
Norm: Euro container (VDA 4500)
Image not loaded

In order to unfold Trenux the folding block on the drawbar and the spring clamp needs to be released. Afterwards Trenux is easily unfolded by pulling the rear grip.

To retract Trenux simply release the folding block on the drawbar again and lift the whole trailer at the central grip. The central grip is only accessible when the entire trailer is unloaded.

Before the next ride it is necessary to ensure the folding block and the spring clamp is locked in place securely.

unfold: 4 seconds
retract: 8 seconds
Image not loaded

The tarp is fully integrated in the folding mechanism and forms the rectangular cargo area. In case of rain the tarp can be expanded into a closed and waterproof dry bag. Your stuff will stay dry and clean inside.

At the supermarket the dry bag is easley dismounted and can be used as a tote bag.

 

Dimensions: 60 x 40 x 30 cm (23 x 15 x 12 inches)
capacity: 40 kg (88 lbs)
Image not loaded

The innovative hitch joint provides Trenux with unique riding characteristics. As soon as Trenux is unfolded the transverse joint is locked by the folding block on the drawbar.

The rotation around the longitudinal direction is able to rotate the whole 360°. In case of an accident, Trenux will remain straight behind the bicycle without additional danger.

The Anti-Sway hitch makes sure the trailer follows the bicycle also at higher speeds without snaking.

For best maneuverability in narrow places the angle between bike and trailer could vary up to 95°.

The hitch joint is designed according to DIN EN 15918.

Image not loaded
The central mechanism is the main part of the folding process and is important for synchronizing all movement.A cable pull reduces the necessary force when unfolding Trenux.

The parallel swivel mechanism keeps the wheel orientation vertical at all times. In addition, it transfers a major part of the weight directly onto the wheels. The central grip is also directly connected with this mechanism to guarantee easy folding.

The central mechanism is patent pending.

Image not loaded

Trenux could be used without, or in addition to, a pre-installed bicycle rack. Like a traditional bicycle rack Trenux is mounted on the left and right side of the rear axle and at the seat post.
Using this standardized system Trenux fits on every bicycle.

 

rack width: 30 cm (12 inches)
trailer width: 50 cm (20 inches)
Image not loaded

Image not loaded

Two bottle crates, a suitcase or four flower boxes fit inside the unfolded Trenux. Any cargo is holded in place by the trapezium shape and the side rail. Additional straps tie-down the cargo.

 

weight: 5 kg (11 lbs)
capacity: 40 kg (88 lbs)
cargo area: 62 x 42 cm (24 x 17 inches)
Norm: Euro container (VDA 4500)

Image not loaded

In order to unfold Trenux the folding block on the drawbar and the spring clamp needs to be released. Afterwards Trenux is easily unfolded by pulling the rear grip.

To retract Trenux simply release the folding block on the drawbar again and lift the whole trailer at the central grip. The central grip is only accessible when the entire trailer is unloaded.

Before the next ride it is necessary to ensure the folding block and the spring clamp is locked in place securely.

unfold: 4 seconds
retract: 8 seconds

Image not loaded

The tarp is fully integrated in the folding mechanism and forms the rectangular cargo area. In case of rain the tarp can be expanded into a closed and waterproof dry bag. Your stuff will stay dry and clean inside.

At the supermarket the dry bag is easley dismounted and can be used as a tote bag.

 

Dimensions: 60 x 40 x 30 cm (23 x 15 x 12 inches)
capacity: 40 kg (88 lbs)

Image not loaded

The innovative hitch joint provides Trenux with unique riding characteristics. As soon as Trenux is unfolded the transverse joint is locked by the folding block on the drawbar.

The rotation around the longitudinal direction is able to rotate the whole 360°. In case of an accident, Trenux will remain straight behind the bicycle without additional danger.

The Anti-Sway hitch makes sure the trailer follows the bicycle also at higher speeds without snaking.

For best maneuverability in narrow places the angle between bike and trailer could vary up to 95°.

The hitch joint is designed according to DIN EN 15918.

Image not loaded

the central mechanism is the main part of the folding process and is important for synchronizing all movement.A cable pull reduces the necessary force when unfolding Trenux.

The parallel swivel mechanism keeps the wheel orientation vertical at all times. In addition, it transfers a major part of the weight directly onto the wheels. The central grip is also directly connected with this mechanism to guarantee easy folding.

The central mechanism is patent pending.

Image not loaded

Trenux could be used without, or in addition to, a pre-installed bicycle rack. Like a traditional bicycle rack Trenux is mounted on the left and right side of the rear axle and at the seat post.
Using this standardized system Trenux fits on every bicycle.

 

rack width: 30 cm (12 inches)
trailer width: 50 cm (20 inches)

The team and its story


In 2016 we went on a bicycle trip to the Baltic sea with a traditional cycle trailer. After the first 100 km the wheel suspension of the trailer suddenly broke. We tried to mount the broken trailer on top of our cargo rack. After some more kilometre we tried to fold it. We were successful but it was only possible to fold it once.

Back at home in Magdeburg a new trailer was necessary. That was the right time to use our knowledge from the mechatronic studies and build something that should revolutionize urban mobility. That was the start of Trenux. Two years later we build already several prototypes and finished our studies at the University.

Today we are working 24/7 to prepare everything for the launch of Trenux.
We look forward to receiving your feedback and start our crowdfunding campaign in spring 2019.

Finn Süberkrüb

CEO

Finn has outstanding organisational skills. He takes care of finance, administrative and suppliers.

Markus Rothkötter

CTO

As excellent CAD designing engineer Markus develops new mechanisms and is responsible that Trenux is always on the cutting-edge.

Frank Sporkenbach

Business Angel

Frank wins all the badminton match against us. The rest of the time he helps us to get our business running.

The team and its story


In 2016 we went on a bicycle trip to the Baltic sea with a traditional cycle trailer. After the first 100 km the wheel suspension of the trailer suddenly broke. We tried to mount the broken trailer on top of our cargo rack. After some more kilometre we tried to fold it. We were successful but it was only possible to fold it once.

Back at home in Magdeburg a new trailer was necessary. That was the right time to use our knowledge from the mechatronic studies and build something that should revolutionize urban mobility. That was the start of Trenux. Two years later we build already several prototypes and finished our studies at the University.

Today we are working 24/7 to prepare everything for the launch of Trenux.
We look forward to receiving your feedback and start our crowdfunding campaign in spring 2019.

Image not loaded.

Finn Süberkrüb | CEO

Finn has outstanding organisational skills. He takes care of finance, administrative and suppliers.

Image not loaded.

Markus Rothkötter | CTO

As excellent CAD designing engineer Markus develops new mechanisms and is responsible that Trenux is always on the cutting-edge.

Image not loaded.

Frank Sporkenbach

Frank wins all the badminton match against us. The rest of the time he helps us to get our business running.

Image not loaded.
Finn Süberkrüb | CEO

Finn has outstanding organisational skills. He takes care of finance, administrative and suppliers.

Image not loaded.
Markus Rothkötter | CTO

As excellent CAD designing engineer Markus develops new mechanisms and is responsible that Trenux is always on the cutting-edge.

Image not loaded.
Frank Sporkenbach

Frank wins all the badminton match against us. The rest of the time he helps us to get our business running.

300km sind zu lang? Aber nicht für Trenux!

Im letzten Monat hat Markus ein paar Tage auf den Fernradwegen genossen. Ein Trenux war natürlich auch mit dabei und musste sich unter voller Beladung auf der Teststrecke beweisen. Von Asphalt bis hin zu verwurzelten Waldwegen und Schotterpisten war alles mit dabei....

Fotografen kommen ins Schwitzen

Nachdem wir von der EUROBIKE Messe wieder im heimischen Magdeburg angekommen sind, erfreuen wir uns täglich an neuen Nachrichten wie: „Wann kann ich einen Trenux endlich kaufen?“ oder „Ich möchte unbedingt Testfahrer werden!“ Im Frühjar 2019 wird Trenux...

Trenux gewinnt Eurobike Start-Up Award

„Beim Trenux zeichnen wir die Idee aus. Das Konzept eines Fahrradanhängers, der zusammengefaltet auf einen Gepäckträger passt, finden wir genial. Werden die Herausforderungen bei der Umsetzung dieser Idee gut gelöst, sehen wir dafür einen großen...

Trenux rollt zur Eurobike nach Friedrichshafen

Nach einer Woche mit wenig Schlaf und vielen Stunden in der Werkstatt sind wir nun auf dem Weg nach Friedrichshafen zur Eurobike, der weltweit größten Fahrradmesse. Einmal pro Jahr kommen über 1.000 Aussteller aller Nationen am Bodensee...

Arbeitseinsatz mit Bergpanorama

Nachdem wir die Prüfungen des Wintersemesters erfolgreich hinter uns gebracht haben, schlossen wir uns Anfang März für zwei Wochen in ein Loft ein. Dort konnten wir forciert weiter am Trenux arbeiten und wurden durch den Blick auf die Berge des schönen...

Vorserienmodell kommt langsam ins Rollen

Nachdem wir im Februar 2018 das CAD-Modell des vierten Prototypen entworfen haben, brauchten wir nun eine Möglichkeit, die Funktionsfähigkeit schnell prüfen und verifizieren zu können. So druckten wir aus PETG das gesamte Modell in einem Maßstab von 1:2 an...

Neues aus der Konstruktionsabteilung

Etliche Stunden Konstruktion und viele Simulationen später ist unser Vorserienmodell zu 80% fertig. Neben der reduzierten Gelenkanzahl, konnten wir die automatische Verriegelung und die Begrenzungen der Ladefläche integrieren, womit eine sichere Benutzung und...

Zurück an den Konstruktionstisch

Mittlerweile sind alle Fehlerquellen eliminiert und wir sind auf dem Weg vom Prototypen zum Vorserienmodell. Neben der Gewichtsoptimierung durch Leichtbau soll der Anhänger im zusammengeklappten Zustand noch schmaler werden und es steht die Integration von...

Neue Reifen

Vier Kinderwagenreifen haben wir zufällig gefunden. Nach 70°C in der Spülmaschine sehen sie wieder ganz gut aus. Von den Abmaßen sind sie optimal, nur vom Gewicht leider nicht – 550g wiegt allein der Gummimantel. Trotzdem probieren wir jetzt aus wie sich das...

Wir nehmen wieder Fahrt auf

Unsere Prüfungen für dieses Semester sind geschafft, jetzt geht es weiter. Wir sind fleißig am Testen und es gibt eine Menge zu tun, neben den regelmäßigen Testfahrten sind wir hauptsächlich in der Werkstatt gewesen um Änderungen und Weiterentwicklungen umzusetzen. So...

Wir sitzen an der Nähmaschine

Der Prototyp brauchte noch eine Plane um ihn volleinsatztauglich zu machen. Also haben wir wieder ein bisschen Zeit an der Nähmaschine verbracht. Mit der neuen Plane zeigt sich zum ersten Mal das große Fassungsvermögen des Anhängers und trotzdem funktionieren die...

Erste Testfahrt des Metallprototyps

Heute stand die erste Testfahrt mit dem Metallprototyp auf der Agenda. Erstmal noch ohne Plane und Zuladung, aber die Ergebnisse sind vielversprechend. Selbst auf holpriger Straße und bei 20 Kilometern pro Stunde läuft der Anhänger stabil. Die nächsten Tests können...

Metallprototyp im Bau

Die einzelnen Komponenten nehmen Formen an.

Patentanmeldung

Die letzten Wochen sind in die Vorbereitung unserer Patentanmeldung geflossen. Mit der Anmeldung steht der Veröffentlichung des Projektes nichts mehr im Wege und wir können auch unsere Webseite online schalten. Damit ist für uns ein riesiger Meilenstein erreicht. Ab...

Aufnahme ins FabLab

Nach der heutigen Vorstellung der Idee und des daraus entstandenen Konzeptes sind wir im FabLab der Universität als Projekt aufgenommen worden. Ab jetzt haben wir die Möglichkeit die Werkstatt dort zu nutzen. Vor allem Maschinen wie der Wasserstrahlschneider werden...

FAQ


Is it possible to transport kids with Trenux?

For the safety of children it is necessary to have a foldable roll cage.
As soon Trenux has confirmed its use for cargo transportation we will launch the version for kids.

Which certifications Trenux needs to fulfill?

There is no technical inspection agency for bicycle trailers.
But there is a DIN norm for safety requirements and test methods of cycle trailers (DIN EN 15918)
Trenux meets this standard.

What is the price of one Trenux?

We want to offer a product with the quality “Made in Germany”. Therefore we are currently in negotiations with local producers which will result in our final price.

Does Trenux fit on every bike?

We have not found a bike yet which could not support Trenux.
In case of bikes with a bigger gap between the rear wheel and the seatpost Trenux tends towards the seatpost.
This isn’t a technical problem. For better style a longer attachment is used to compensate the length.
If you are unsure whether Trenux will fit onto your bike please contact us.

 

EUROBIKE 2018 EUROBIKE 2018
winner of the startup award

 

 

Sachsen-Anhalt Startup from Germany (Saxony-Anhalt)