Picture of How to build a great big tall bike.
Hey, here is my great big tall bike.

 I was given lots of parts of bicycles and as as none of them were any good or complete I decided to uses up all the parts that I could to make something beautiful.

I used two mountain bike frames and an extra sets of forks ( three in total) and a bmx back wheel.

I made it up as I went along and it was lots of fun.

I used an arc welder (stick welder) which is not ideal for bike frames but if you don't mind burning a few holes into the frames then it is ok;  a Mig or acetylene welder would be easy peasy.

My welding is not so good so I jumped around on the frame before riding the bike to make sure that it was safe.

It rides like a dream.

The first step shows everything in an animation form ( this is also in the film) and then the subsequent steps show more detail.

Here is the video ( which is essentially someone riding the bike around in circles for 1 minute and eight seconds); enjoy.

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Step 1:

Picture of
If you were too busy to watch the film then here is a quick animation.

Step 2: The forks.

Picture of The forks.
Firstly I took the front wheel off.

I took my second pair of forks ( No. 2)  and cut them top and bottom as shown, as shown.

I cut the drop-out ends off the original forks.

I slid the No.2 forks onto the original forks and welded them on.

I took another set of forks (No.3) and cut them at the top and slid and welded them onto fork No.2.

I thought that it would be a good idea to put a brace across the forks for strength.

Unfortunately I had no metal at all; I used the front chainset from frame number 2 and welded it across; it looks rather stylish.
crazypj5 months ago

What a great idea, I have a few scrap frames from kids BMX bikes. They are way too small to be any use, but, some cutting and welding could make something 'weird'

Kiteman1 year ago
Love the animation - you ought to write another instructable on how you made it.
FriendOfHumanity (author)  Kiteman1 year ago
Thank you Kiteman; it's just stop frame animation.
Still, I'm sure it would be popular.
+1. Absolutely. Show us how you did it.
The animation is very effective.
FriendOfHumanity (author)  jhawkins141 year ago
Thanks man.
cool bike like the design looks like lots of fun
FriendOfHumanity (author)  GreenHatNRG1 year ago
Thanks GreenHatNRG, it's a scream to ride.
caarntedd1 year ago
I,ve been trying to work out a cool tall bike design to use up some of my old bike parts. I think this might be it. Great work and great i'ble. Thanks.
FriendOfHumanity (author)  caarntedd1 year ago
Thanks; post up a picture if you do.
rimar20001 year ago
Clever and original design solution.
FriendOfHumanity (author)  rimar20001 year ago
Hola Rimar2000,

Gracias por los lindos comentarios.
unigamer1 year ago
Very nice, and I enjoyed the video a lot. It was the perfect balance of showing the bike clearly and fun!
FriendOfHumanity (author)  unigamer1 year ago
Dear Unigamer,

Thanks for the feedback, I'm glad that you liked it.