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Atomic Zombie's AfterBurner Chopper Bicycle

Atomic Zombie\
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Another easy and affordable project! Transform a standard bike into something cool and unique in just a day or two - seriously! This is a great garage or backyard project that doesn't require special tools or skills, although basic welding is required.

This classic 1970's style chop was named and built by Enzo and Nathan (father and son team) from an old mountain bike that was found laying in the mud at the city dump.

Instead of the extended front forks, this chopper is roughly styled after the classic Raleigh Chopper bicycle with the straight frame and tiny front wheel. This project requires no extra tubing in the frame, and except for a few small add-ons, only requires cutting and welding two frame tubes.

Any mountain bike with 26 or 24 inch wheels can be used for this project. Besides replacing the seat and handlebars, you will only need a front wheel of any size smaller than the original rear wheel. A 16-inch wheel was chosen for this build.

Health Hazard
All welding processes produce fumes and gases to a greater or lesser extent. Galvanized steels produce added fumes from the vaporized zinc coating. Fumes from welding galvanized steel can contain zinc, iron and lead. Use precautions, including high-velocity circulating fans with filters, good ventilation, air respirators and fume-extraction systems.

More cool projects can be found at: http://www.chopzone.com and
http://www.atomiczombie.com

 
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Step 1Find a donor bike

Find a donor bike
The donor bicycle is a typical variety steel framed mountain bike. This frame is described as "uni-sex", but looks kind of "girlie" to me. Don't worry about it, dude, when we are done, that won't be the case.

The overall condition of this bike was fairly good considering it sat in a mud hole at the local dump, and was probably run over a few times by the bulldozer guy. This is a good thing, since we will be using everything but the front wheel, seat and handlebars.

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27 comments
Jun 28, 2009. 10:51 PMbad apple says:
all it needs now is a sissy bar. Awww, yeah.
Feb 13, 2012. 4:22 PMThe nerdling says:
i call them sissy bars too :)
Oct 8, 2010. 7:00 PMchevy79 says:
CLunstrum333, No it isn't, but I have built 2 of them so far. And thanks for noticing.
Feb 22, 2010. 7:31 AMsarliaee says:
congratulations nathan! well done on building such a great bike!
Jan 27, 2010. 8:39 PMCLunstrum333 says:
They have a bike like this at the Boise bike Project here in Boise.

Just Curious: Is this the one in there?

Jun 24, 2009. 12:32 AM555mst555 says:
now i know why he needs such a big seat.....lol.....just a little of my thoughts
Jul 8, 2008. 2:51 AMnobby_sk8 says:
this is realy good and easy does any one now a way of modding some normal bars to make ape hangers? or a cheap web site
Dec 1, 2008. 10:30 PMI smell bacon says:
I've done this once and it works allright. Take some regular 2-piece BMX bars and take out the middle piece. It may weaken them though it essentially makes ape hangers.
Dec 1, 2008. 4:57 AMlasersage says:
I managed to buy some ape hangers for my girlfriends chop project at a bikers autojumble. I was after a new seat for a motorbike and spotted loads of ape hangers for between £5 and £10!!!! not bad. Autojumble is the way forward.
Jun 5, 2008. 11:00 PMI smell bacon says:
Mountain bike!? the original bike had no suspension, how is that a mountain bike. Apart from that a pretty good instructable, I am hoping to do a similar thing with a BMX i found in a skip bin.
Dec 1, 2008. 4:58 AMlasersage says:
You don't need suspension to class it as a mountain bike. The big knobbly tyres and gear range are enough
Sep 17, 2008. 3:36 PMmkamchin says:
how much did it cost
May 22, 2008. 10:29 AMcamb00 says:
http://www.chainreactioncycles.com/Models.aspx?ModelID=16897
found some handle bars and they come in black and a saddel allthough not a phat 1 but sure this would look sweet!
http://www.chainreactioncycles.com/Models.aspx?ModelID=27894
Jun 21, 2007. 6:42 PMCam F says:
The frame flips or turns in every pic!!! (~.~)
Jun 8, 2007. 4:38 AMbabyboi512 says:
ditto!! the other guy hu made a zombie bicycle is wayyy koool
Oct 21, 2006. 9:39 PMrimar2000 says:
Thank, Koolkat. I prefer the first approach of the bike. Sobre gustos no hay nada escrito (on inclinations not to have swum writing, http://ets.freetranslation.com/)
Mar 18, 2007. 7:15 AMpyroo5576 says:
i like all this kinda stuff but i cant weld is there ny thing else i can do?
Oct 20, 2006. 4:09 PMtrebuchet03 says:
Do you take out the BBs when you work on it? I couldn't tell from th picture - but I didn't see the bearings in the disassembly picture... Just wondering if you have a method to remove it... I don't have a BB tool and I've destroyed one BB already with a vice and wrench :/ --- Still makes me wish I had/could afford a welder :P
Oct 20, 2006. 5:50 PMspinach_dip says:
You glossed over the brake, but hey that can't be too important. :P From the pictures it looks like it was added as an afterthought. It's in the last pic, but not the second-to-last one So that's one rear brake, right? I suppose it's not a road bike or anything. What's a BB? ball bearings?
Oct 20, 2006. 5:51 PMtrebuchet03 says:
Bottom Bracket ;)
Oct 20, 2006. 3:42 PMrimar2000 says:
Esto podría muy bien llamarse "Cómo arruinar una bicicleta que funcionaba perfectamente".
Oct 20, 2006. 4:10 PMtrebuchet03 says:
Apparently you didn't see the chain beforehand :P

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