wobble bike

wobble bike
Build your own wobble bike! This double-jointed rolling wonder lets you steer from both ends. Also known as a "swing bike", there was even a commercially produced version in the 1970's. The wobble bike is one of many types of "freak" or "chopper" bikes you can make. Its one of the easiest to start with if you have never made something like this before. It's also great fun to ride! It only takes a couple minutes to get the hang of it, and then you can ride it nearly anywhere.

You can make the wobble bike in just 3 or 4 hours. You don't need to be very good at welding, but at least have a friend show you how to do it if you've never done it before.

This article is brought to you by MonkeyLectric and the Monkey Light bike light.


 
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Step 1Tools used

tools used
WHAT YOU NEED
- 2 steel beater bikes
- a small Arc or MIG welder.
- an Angle grinder with cutoff wheel and paint-stripping wheel
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69 comments
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Jan 24, 2008. 5:15 PMgadlen says:
Excellent. A friend has built a similar bike. He added on a disc brake on the rear hinge, controllable by hand-brake. It works great. You can lock up the hinge when you see fit and ride with it in that position.
Jul 28, 2011. 7:06 AMkstadden says:
Brilliant mod.
May 25, 2010. 8:13 PMratgod says:
I saw a bike that had the handle-bars geared so it would steer in the opposite direction, it was at some holiday resort in england on the west coast, probably Blackpool, and some guy was offering prize money for people who could ride it through a set of cones without falling off.

Maybe you could challenge people to do something similar with this bike for a laugh.
May 31, 2011. 10:56 PMThe nerdling says:
i've seen some like that they were confusing
Feb 20, 2011. 12:57 PMBillerB says:
Thanks for this post. I have just built my own wobble bike using this instructable as a guide. Great fun building the bike - and it is ridable, it has front and rear brakes and gears !
Mar 6, 2011. 1:32 PMBillerB says:
This is the wobble bike I built, complete with brakes. I haven't painted or grinded down the redundant frame parts which does actually make it easier to work out the construction. I found Dan's post the most useful in understanding how to build a wobble bike. The design is probably closer to the post put up by wobblejohn.
The welding aint too pretty - It took me and my friend a while to realise that we were using his 'no gas' welder with regular non flux coated welding wire. A trip to machine mart and a purchase of CO2 canister made all the difference.
wobble_bike.JPGriding_wobble_bike.JPG
Feb 27, 2011. 6:57 PMrustychrome says:
Haha! I just built one of my own tonight. Its was like wrestling a pig trying to keep it all clamped together while I was doing my cutting and welding. Only problem is that my feet are too big and the front wheel rubs my toes. I need to go with a smaller wheel or lengthen the frame. Does certain changes in the geometry help it handle better? I felt like I was learning to ride all over again, but it was fun.
Mar 12, 2010. 7:02 AMvmod32 says:
Where are the breaks?????
Feb 20, 2011. 8:04 PMLiteachey says:
Coaster brakes. no wires. no mess.
May 24, 2010. 12:47 PMthinkdunson says:
i don't think he's going to be going very fast on this bike to begin with, but it would certainly be easy to attach a BRAKE to the rear wheel and control it on the handlebar.
May 24, 2010. 9:43 PMsabbysayshi says:
cant you use 2 gyros?
May 24, 2010. 10:33 PMthinkdunson says:
 of course, but that won't be nearly as effective as a brake.
May 23, 2010. 9:34 PMhalberdear says:
Breaks are for noobs. 
Apr 22, 2010. 10:13 AMArx says:
 There are no "breaks", His welding looks solid.

:P
May 24, 2010. 12:45 PMthinkdunson says:
 well done, sir.  well done.
May 25, 2010. 5:39 PMcrazyg says:
nice job ,well and simply explained
reminds me of when i had a go on my friends little brothers friends rusty ol bmx when they wernt looking ,the breaks were rubbish and went front wheel into a wall as i stood and rode the frame went all bendy so i parked it where i found it,
i guess the mask is ironic
May 24, 2010. 4:32 AM3VIL G3NIUS says:
 I'm sure this would make for a very interesting crash!
Using brakes would be ruthless wouldn't it, the front would cause it to fold, the back to straighten out suddenly. Which makes it all the more fun, time to make mine.
May 23, 2010. 11:39 PMXOIIO says:
Hmm... No breaks, and wouldn't that be hard to ride?
Sep 8, 2008. 4:52 PMcantthinkof bettername says:
What would stink, is to find out after you built it, that you couldn't figure out how to ride it. I built a recumbent, before I ever rid one, but I got the hang of it.
Apr 4, 2009. 7:59 AMadmanrocks says:
no, you build it so you can learn to ride it. where's the fun in always doing what you know!?
Apr 5, 2009. 8:48 PMcantthinkof bettername says:
well if that is the case then it would only be fun while you were learning it.
Apr 5, 2009. 9:44 PMadmanrocks says:
i'm not trying to argue with you, i'm just saying that learning new things is fun. I'm sure this bike would always be fun to ride.
Apr 6, 2009. 5:33 PMcantthinkof bettername says:
Yeah. If I had the time and money I would probably try this. But the thing about not being able to learn is what keeps me from getting a unicycle. It looks fun, but it is expensive, and I might not be able to ride it.
Sep 4, 2009. 3:19 PMtubanator-2.0 says:
actually unicycles can be really cheap depending on what you get. the one my friend got for me was 20 dollars off of craigs list it didn't really need much work just the bearings had to be greased. as for learning, just learning how to balance is hard but not as hard as most think.
May 5, 2010. 6:42 PMcantthinkof bettername says:
 I have not been on in a long time, but I learned to ride a unicycle several months ago.  It was fun, but I think I damaged the unicycle in the process of learning. haha
Apr 6, 2009. 7:42 PMadmanrocks says:
... you're right, never try anything you might not be good at.
Sep 7, 2009. 5:14 PMfoxtrot4697 says:
lol
Apr 9, 2009. 7:17 PMcantthinkof bettername says:
That's not what I'm saying. This project isn't right for everyone, but that doesn't mean it is bad. I would like to try riding one of these, but I have too many bikes already so I don't want to build another one right now.
Nov 21, 2007. 4:55 PMcallmeshane says:
Boys and Bicycles.... Boys make better bike riders, because they have to be... Not having had the experiences of riding this type of bike.... I am curious, what would one have to do, or end up doing to make this go very badly, very quickly.... as in folding up like a concertina while in full flight.... And don't say dumb stuff like "hit a car"... I am thinking more in terms of "speed wobbles" etc...
Nov 28, 2009. 3:30 AMpyro1324 says:
check this out www.youtube.com/watch?v=R5P70XtI4zQ

Oct 17, 2009. 7:18 PMmrdepo96 says:
 enough periods there? I don't think soo...
May 23, 2010. 10:33 AMDavidKaine says:
three sequential periods is an ellipses
Oct 27, 2010. 4:53 PMmrdepo96 says:
gee thanks!
Oct 20, 2009. 5:07 PMrada194 says:
Try and do a wheelie on that. lol
Nov 28, 2009. 3:24 AMpyro1324 says:
 try to do a stoppie^^

Sep 11, 2009. 12:13 PMVagsmaCutter says:
Swingin bike, I've always wanted one. I remember the swing bike in the bike shop, the celeb that was on the ad. was Jimmy Osmond...I think I remember it had a mean looking spring that looked like it could play hacky sack with you if you weren't careful, if you know what I mean.
Sep 9, 2009. 4:50 PMthing 2 says:
nice!
Sep 5, 2009. 3:28 PMLetsExplodeSomething says:
can u upload a vid of this thing in action? really cool idea
Sep 5, 2009. 7:16 PMLuminousObject says:
Just go on youtube and type in "swing bike". There's some pretty cool tricks people do with them.
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Author:dan(MonkeyLectric)
Dan Goldwater is a co-founder of Instructables. Currently he operates MonkeyLectric where he develops revolutionary bike lighting products. He also writes a DIY column for Momentum magazine.