The history of the Milliway Drive Train for Bullitt Cargobikes.
In 2009 elektronenrad build the first Motor system to provide a full eBullitt solution. Often copied never reached this was the beginning of a new Cargobike Generation. Project Milliway was discontinued in 2015 due to the stable availability of two Motor Systems for the wonderfull Bullitt, BionX and STePS.

We’ll keep the page as an archive here.
— Mgmt. 18.04.2016


to the stars!

Motor Conversion Kit for Bullitt Cargobikes

Milliway is a unique and special designed Motor Conversion Kit to fit the Bullitt Cargobike. It is designed by elektronenrad a company dedicated to build Pedelecs and Ebike solutions. We are Berlins oldest Bullitt dealer and used our knowledge and costumer experience to build the best electronic motor kit available. In addition Milliway is the first electronic powertrain of the industry with an open documentation. Most, if not all schematics and production processes are public accessible, this should enable companies and users to evolve what we have started.

What is in the Box?

  • 20″ Frontwheel Motor
  • Case for electronics
  • Pedal Assist Sensor
  • Motor and Energy Cable

… and where does the Power come from?

Short answer – you choose! Depending on your conditions, environment, lifestyle and daily usage you have to decide what is the best power solution for your needs. We live in a fantastic age and whether it’s a lithium battery in Copenhagen, a solar cell in Australia or a fuel cell in California. – Milliway is the right Platform to match your electric solution of choice. In our Wiki we provide a wide range of different ideas to power your bike. Some are implemented and in active use, some others are subjects of the near future. Join our journey to approve more exciting solutions over time.

Tech Specs

Hub Motor Reliable Crystalyte Hub Motor, depending on the energy source up to 800 Watt power.
The Motor is brush- and sensorless. A solid mounting kit is included.
Discbrake Size: 160mm, please check for new (2012) 180mm Models, adapter included
Rim and Tire original Bullitt Rim 20″, stronge spokes. Tire: Schwalbe Marathon Plus
Cables high quality silicon cable. Motor Connector (1m) and Energy Cable (1.5m)
Connectors high quality Neutrik Speakon connectors for long durability
Controller flexible and programmable Controller Setup, up to 48 Volts, up to 25Amp.
Pedal Assist Sensor durable ABS Plasic Mount, fits Shimano Hollowtech Crankshafts
Electronics Case A small case that fits all electronics. It is extendable, easy to rebuild and fits below the cargobay
Box Delivery comes in a nice wooden box – you may use it for your energy source

The whole Setup

Lightning Controller Case

Introducing Milliway, elektronenrad sets a new perspective on how modular and flexible vehicle constructions can work. Heart of the System is the lighting controller case. This carefully created case is perfectly suitable for the electronic components of the Milliway powertrain and fits seamlessly into your BULLITT frame.

Advanced Features of the Lightning Controller Case

  • fully controllable settings
  • variable voltage
  • variable current
  • inflight assistans manipulation
  • first time of additive material integration on a bicycle

Crystalyte™ Hub Motor

To make Milliway the most comfortable powertrain ever build for a cargobike, we used the most trustworthy motor we know – The Crystalyte™ high speed series, specially fitted for cargo needs.

Features of the Crystalyte™ high speed motor

  • incredible performance frontwheel motor
  • integrated high load disc brake
  • water tight sealing
  • low on thermal issues
  • special sound design for a comfortable journey
  • high quality torque mount

Pedal Assist Sensor

Milliway comes equipped with a fully EU Pedelec compatible Pedal Assist Sensor (PAS). To fit all BULLITT models we provide two versions of the sensor.

Pedal Assist Sensor Features:

  • click on installation
  • Shimano® Hollowtech compatible
  • SRAM® Truvative compatible


All Resources and Documentation regarding Milliway are located at the public Wiki of elektronenrad. Please have a look, here you will find more detailed informations regarding the setup and howto reproduce and or modify your Kit.

Open Hardware Project

Open source hardware (OSHW) consists of physical artefacts of technology designed and offered in the same manner as free and open source software (FOSS). Open source hardware is part of the open source culture movement and applies a like concept to a variety of components. (wikipedia)

All Items developed and or designed by elektronenrad are released under a Creative Commons License BY-NC-SA 3.0