Retro Electric Bike

About: I have a Advance Diploma of Multimedia Design, have a lot of graphic/industrial design work experience. I'm also a trade qualified Metal Fabrication Engineer. Recently I have given up all this to develop my ...

This is a custom pedal/electric bike I designed and built for school. This slideshow shows the start to finish build of the project.
I am doing Metal Fabrication Engineering along side a boiler making apprenticeship. I am looking to head into custom electric motorbikes or the automotive fabrication area after my apprenticeship and maybe one day have my own shop.
Location: Melbourne, Australia.
Inspired by the bikes from the 30s and 40s with a touch of WW2 Japanese Zero Fighter.
Bike Specs.
Frame: 4130 Chromoly
Swing arms and Front end: 6061 Aluminium.
Tank and Fenders: Aluminium
Leaf Spring Suspension
181 Hand cut pieces
30 parts
86 Bolts.
600+ hours over 16 weeks
Materials and parts $2500 AUD
Electrics : 500w 36v Front Hub 3 X 12v 12Ah AGM SLA Batteries Control and cycle Analyst from

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    61 Discussions


    1 year ago

    All I can say is "incredible'. Love the design. Very original.

    Hi, yes I am the author. Generally I don't give away my designs, they cost me too much time and money to make. I would consider selling the concept however.if you'd like to talk PM me.


    4 years ago on Introduction

    Really a great project, and nice craftsmanship. If you are heavy into boiler making why not consider a steam powered warning whistle?


    6 years ago

    Great looking bike


    6 years ago on Introduction

    If you could distill and bottle genius, this is what it would look like.


    7 years ago on Introduction

    It is a thing of beauty. Beyond my meager skills though.


    9 years ago on Introduction

    Brilliant design, Whats it like to ride? I'd love to do somethin similar (eventually) but the only thing i'd be worried about would be that the riding position would be too low for decent leg extension when dealing with tough hills etc, i know the motor will help, but was this a concern when you were designing it?

    3 replies

     Thanks diarmaid_h
    I have been up some really steep hills and it goes ok. It does feel a bit weird to pedal but it wasn't a concern. On a fresh charge she is great fun to ride, It quite stable and you can go around corners pretty laid down. It definitely more of a cruiser.
    I designed this as an electric motorbike really but school was worried i'd sue them if I hurt myself so I told them I was going to make a "pushbike" instead. My teacher was cool with it but as far as administration knows the big black thing in the front wheel is a "hub brake" ahahah. 
    Having pedals has the advantage of appearing like a push bike if an officer of the law goes past me too ;) We have a 250w limit on electric bikes in Australia, which I think is f***ing ridiculous
    I'd always planned on a bigger motor and better batteries but towards the end it was turning into a money pit. It will happen when time and money permits.

    Haha pedals for show! Ya i don't know what the limit in ireland is on wattage but i'm sure we're equally as bad! I've been lookin into doing something with a 72volt bike design but the money pit just seems to explode once you go past anything like an assist hub motor! check out to see what i mean. Alot of other insturctables feature grand electric bike conversions but no way of charging other than buying a big unit for over $800!

    Yeah the price certainly does exploded. I have already designed its big brother, intended to be a proper motorcycle so I wanted fast with long range. I spec'd it on the extreme end but the whole package was going to leave a 30,000(AU) dollar hole in my pocket. 20,000 for the motor and controller (it was a 150Kw motor) and about 10,000 for the batteries necessary to power it ha. It was just a pipe dream, I don't even know if the batts would fit in the frame. I'd still like to build it but maybe around 100hp motor would be more realistic.