Turn your bike into a stable tricycle bike, PRMs adaptable

From €950

Turn your bike into a compact and extra stable tricycle bike by replacing the rear wheel with the B-Back. It’s perfectly adaptable for PRMs (People with Reduced Mobility) and/or seniors who want to get (back) in the saddle!
This tricycle accessory will allow you to carry up to 35 kg/77 lbs on a daily basis, plus you can tailor it to your needs by adding the pet or the freights module. The B-Back is a huge asset for your urban journeys!

Carry your pets or your groceries with the special modules compatible with the B-Back and turn your bike into the most efficient tricycle bike.
In order to meet your needs even further, we are currently designing another version of the B-Back: a full-on tricycle. It’ll soon be for sale.

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Description: The B-Back turns your bike into a tricycle bike

The B-Back is designed for those who are looking for improved stability on their bike (Persons with Reduced Mobility and/or seniors) while carrying loads! You can use it as is or add extra transport modules.

B-Back: a tricycle accessory that adapts to your daily needs

Need extra stability on your bike? Enjoy an urban and stable tricycle bike by installing the B-Back directly on your own bike. Our installation system allows you to turn your bike into a cargo tricycle! The two 20″ wheels will ensure great stability during your daily commutes. This three-wheeled accessory is a cost-effective, compact and practical solution. It is easy to use and store on a daily basis, even when travelling!

Discover our range of modules compatible with the B-Back, to transport dogs, cats or loads… The possibilities are multiple and everyone can find a solution for their daily trips! Turn your three-wheeled bike into an extra stable, practical and cost-effective means of transport.

Rides at a normal speed

– Turns to be made at low speed

– Not advisable on other terrains than paved roads

B-Back_Accessory to transform your bike into a three-wheeled bike
Installing the B-Back system

Installing the B-Back on a bike can be a complex step (it is necessary to change a wheel, install the supplied brake and change the cassette). We strongly recommend that you go through a bicycle professional. If needed, contact us to know more!

Diagram B-Back_Three-wheeled bike
Another type of B-Back is now available: a full-on tricycle bike

We strive to make products that can perfectly adapt to your daily needs. That’s why we also worked on a B-Back bike, rather than just an accessory. Are you be interested in the B-Back bike? Contact us !

Additional B-Back modules

Transport your shopping with a tricycle for adult

B-Back Box

Load transport

B-Back_Transporting everyday loads on a stable tricycle

Load capacity: 43L
Dimensions (l x W x h): 37cm x 50cm x 37cm / 15″ x 20″ x 15″

Transport a dog with a tricycle for adult

B-Back Box

Pet transport

Transport animals by tricycle

Max. pet hight : 30cm 

Max. pet length: 42cm

Max. pet weight: 35kg / 77lbs

The compatibility of our tricycle bike accessory:

Check the compatibility of your bike with the B-Back accessory

We have put together a tool for you to check the compatibility of your bike with the B-Back. Click below to try it 🙂

Our tricycle bike technical features chart, check it out!

B-Back accessory:

Weight (frame only): 15 kg / 33 lbs

Dimensions including wheels(lxWxh): 68cm x 68cm x 50cm / 27″ x 27″ x 20″

Wheel size: 20″
Colour: Black
Brake: Mechanical disc brake
Rims: Aluminium
Load capacity: 35 kg / 77 lbs max.
Materials: Steel and aluminium
Frame treatment: Cataphoresis and paint

Some examples of what users think of our tricycle bike!

”I enjoyed trying the product out. The accessory is very stable and adjustable!”


“Perfect for everyday use but also for holidays! I was even able to add a crate for my dog, which was easy to remove and put back on.”

Susan, beta tester

Q&A: the answers to your questions about the tricycle for adult

Is the B-Back accessory compatible with my bike?
It is mostly probable that your bike is compatible with the B-Back accessory! The B-Back is also compatible with Dutch bikes and mountain bikes of 26″ or 29″ frame. To know more, give a read to our compatibility sheet 
Can I install it myself?
Installing the B-Back on a bike is quite simple. You just need to know how to change a wheel, install the B-Back brake and change the cassette.
You can also choose to have it installed by one of our approved partners. We provide our partners details on request. The installation can take up to 1 hour. The cost of installation is €75.
Can I transport a dog with this system?

As a matter of fact, yes, you’ll be able to travel with your furry friend every day with the B-Back Animal module! You can transport a dog on the B-Back tricycle by simply adding the pet module. You can also transport other animals such as cats, rabbits etc. that fit within the mesurments of the module.

You didn’t find the answer to your question? Contact us, our customer service will answer shortly.

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By cycling enthusiasts and cargo bike experts


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We keep spare parts in our warehouse in Lyon


Our team is available 5 days a week
By phone: +33 4 78 59 98 76
By Email : sales.support@addbike.fr


Full guarantee on spare parts
Valid for manufacturing and/or material defects

Extra accessories for your tricycle bike:

Prix : 35,00 

Child bike helmet

Prix : 76,00 

Adult rain poncho

Prix : 90,00  TTC

Folding bike lock 6100/90

Prix : 15,00 

Adult hat


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