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three years ago i bought a trailer to get my son to our swimming-place or to the nice playground that's a bit more far away than the small one around ...
i got myself an old crappy bike and cut it in two halves along the black line.
the next thing was to construct the front frame. i thought that bigger would be better so it became 100 by 100 cm. this was not a good idea, but more ...
the idea now was to mount the front wheels directly to the frame (see detail). looking at pics of original christiania bikes i saw that they put the w...
first test assembly: looked good :-)
now to the rear part of the cargobike. i took the handlebar's pivot from the old bike, welded it to a steel tube and then welded the steel tube to the...
the inner tube of the handlebar's pivot gets welded to the front frame and then i did a ...
... second test assembly. it looked great and i was quite happy.
the rear part undoubtedly had to be stronger. so i added a second steel tube and a bracing.
the handlebar consists of three tubes connected with 90 degree tube-angles.
for the brakes (old ones from another bike) i screwed two steel plates with holes to the frame.
test assembly 3: looked good. but as i tried to ride it i recognized i was nearly unable to turn the bike in any whatsoever direction. after some rese...
cutting the front frame, making it smaller and building a new pivot (taken from another old bike) were the next things to do.
finally the frame was done. what followed was to mount the brake cables and all the usual stuff to the bike. one issue that had to be solved was how t...
this adaptor delivers the power of one handle to two brakes simultaneously. and last but not least one needs a ...
box to transport kids and things with the bike. that's it :-) further improvements will be some cat eyes and other security stuff.
after improving a few things (see the edits in some of the steps above) the last thing to do to complete this battleship was to add an adjustable ste...
the measurements in this pic are the actual ones of my bike. if i would build one like this again i would change some things: 1) don't make the handl...
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Posted:Jun 22, 2010
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