Picture of Office Chair Bike
C:\Documents and Settings\HP_Administrator\Desktop\OfficeCAD[1].jpg
C:\Documents and Settings\HP_Administrator\Desktop\OfficeMiter[1].jpg
C:\Documents and Settings\HP_Administrator\Desktop\OfficeStrap[1].jpg
C:\Documents and Settings\HP_Administrator\Desktop\OfficeWelded[1].jpg
A recumbent bike with a very comfy seat.
It's a 35 pound leather executive office chair connected to a 16" (little girl's) Princess bike re-welded into a recumbent (recliner bike) and using a piece of another donor bike frame.
I built it in honor of "Bike to Work Day".

If you like fun/unusual home built bikes... check out my hobby site Woodenbikes.com

Step 1: Design your bike using a CAD system (Cardboard Aided Design)

Picture of Design your bike using a CAD system (Cardboard Aided Design)
Make a cardboard cutout of your lower leg (with foot and pedal), thigh, torso, and straight arm (to a distance 2" back from your wrist). Use it to look for good riding position and clearances for knees to bars, heels to wheels etc. Use the CAD system to layout the riding position, cranks, wheels etc with attention for locating your hands, shoulder, seatback angle, butt, knees and feet. Also look for ways to arrange a straight chain line (at least for the tight side) by raising the Bottom Bracket (BB)(main crank bearing).
For detailed instruction on designing a sweet handling recumbent visit www.bikesmithdesign.com

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what is lmfao?
DRH14693 years ago
Cardboard Aided Design = CAD hahahahahahahahahahahahahahahahahahoooohaaohoohohahahahahahahahoooohahahhhhaaaamwhhahahahahahahahahahhaaghahahahhaahhahahahahahahahahahahahhahahahahahahahahahahhahahahahahahahahahahahahahahahhahahahahahhahaha,COUGHHHHHhahahahahhahahahahhahahahhahahahahahhahahahahahahahhahbwhahahahahhahhahahahahhahahahhahahhahahhahahahhahahhahahahahahhahahahahahahhlmfaolmfaohahahahahahahhahahahhahahahrotfolhahahahhahaarotfolrotflalmaohahahahhahahahahahhahahahahahahahhahahahhahahahahahahahhahahahahahahahahahahahahhahahahahhahahahhahhhhhhaaaahhhhahhhahahahah>>>CHOKE CHOKE CHOKE CHOKE DIED DIED DIED

(This is what happens when you LMFAO)

Well Done none the less

HanzieO4 years ago
Hi, I stole some of your ideas, from this site and your own, and made this bike from a bit of Origan I found, some plywood and a junk yard 20" kids bike. Great work keep it up. You inspired me to re-use and recycle.The seat is foam padded and uphulstered with yellow vinyl. I also adde a lightning bolt and a scull sincce the foto.
Woodenbikes (author)  HanzieO4 years ago
Pretty cool looking ride you have there! I'm glad you got inspired to build one.
Can you post an instructable on your build? I wonder if the headset would benefit from another block of wood under the frame beam to help distribute the torque of braking or bumping a curb etc. Maybe it's supported in another way we can't see.
Thanks. You are right about the weak headset connection. Its the bit that worries my the most(structually).

I drilled the hole a bit oversize and filled it up with Epoxy resin. But I can see about 10mm movment on the front wheel axle if I brake hard. Today I got a big tube of 2part epoxy putty and built it up above and below. seems to help. I will keep an eye on it and if that fail I will weld a piece of plate on underneath and screw it to my beam.

I am halfway with the next one. Its a bent plywood one like the one seen here on this site. Instructable soon!
HanzieO HanzieO4 years ago
mikesty8 years ago
I am exceptionally jealous of your coolitude. Stuff like this only comes in my dreams. You can make it a reality. I can't. That's cool. I would probably buy that if I wasn't so poor.
Woodenbikes (author)  mikesty8 years ago
Thanks for the encouragement. I also used to think I couldn't do it. I had a long gap of 20 years between seeing a similar home built bike and building my own. I started with very simple wood bikes that required no welding. I will post one in a few weeks but you can see them now at www.woodenbikes.com I discovered you could drill one hole for the cranks and bearings and one for the headset and just put the fork and cranks right through an old post. Nail on a couple pieces of plywood to hold the rear wheel and you have a bike.
How much engineering experience do you have? I just turned 18. I'm going to college next year to study engineering. I've done robotics for the past two years but I never really worked with machinery and I am not always a hands-on guy. I'm a bit of a late bloomer, but I think that some day I'll be able to make one :) Currently I've got this old Panasonic Villager III bike I'd like to repair and take with me to college.
Woodenbikes (author)  mikesty8 years ago
The hands-on stuff is only intimidating until you start. Then you see its actually pretty straight forward. You are probably ahead of where I was at 18 so you are going to have a fun future. I earned a B.S. in Environmental Engineering from Cal Poly, SLO and a PE license in mechanical. The engineering class to remember will be statics. No numerical calculations occured while making this or any of my other 15 bikes to date. Pencils are used but only to mark where to drill, or cut. I bet if you took the parts off that Panasonic frame and built a different frame from plywood and short piece of 4x4 you would meet a lot of fun and interesting folks at college. I'm reminded of a Robert Frost poem about taking the bike less common, and that has made all the difference.
You don't hafta be an engineer to enjoy making stuff. I'm a biologist and my engineer boyfriend (biomedical engineer, they mostly do electronic stuff) says I probably have more mechanical aptitude than him _ Bikes are great, they should be on the list of the 100 best inventions ever.
Woodenbikes (author)  xenobiologista8 years ago
I agree on both points. To enjoy making things, all you need is some curiosity and courage. Curiosity to ask "what would it be like if I modified a ... and applied it to a...? Courage to be ready to invest materials and effort (and maybe ego) into the experiment with the possibility of having it not work the first time. I'd even put bikes in the top 20 inventions.
I would have to disagree, they are the best. I like this design though it could use a smaller seat but its good.
jridley mikesty8 years ago
The most important thing anyone can learn is to embrace failure. Half the stuff I build doesn't work at all or not very well, but even so it's fun, and the stuff that does work, doubly so! Many times I'll build something knowing full well that it won't work; I'm doing it so that I can learn what the pitfalls are, what areas need special attention, etc, so that my next attempt will work better.
ElvenChild6 years ago
You claim that your fashion sense is bad believe me mine is 3 times worse it involves a long sleeve green shirt and fuzzy number 18 soccer pants
Dzwiedziu8 years ago
How did you mounted the chain? The instructable lacks in explaining this. I'm not a fan of horizontal bikes l but you still deserve a + for the Carboard Aided Design and pointing out the ecological issue.
Woodenbikes (author)  Dzwiedziu8 years ago
I added a couple of steps showing the chain routing and made a new instrucable about how to use a chain tool to make long chain: http://www.instructables.com/id/EQWN3LZF4NIBB0H/

Glad you liked the CAD system. (A Trogolodyte's Tribute To Tech) It is really quite useful.
my drafting teacher must not know the real meaning of CAD cause for some odd reason he refers to it as computer aided drafting, wonder where he came up with that incorrect acronym
He's probably thinking of the cademia program cad for short. And by what do you mean acronym.
ReCreate6 years ago
Have you ever fallen down? How bad is it when you fall down?(it looks to me that your hit the ground either from the side(a tipover) Or you fall forwards(Hit something))
Woodenbikes (author)  ReCreate6 years ago
I have not crashed any feet forward bikes yet. I guy who had crashed a recumbent told me it is generally a not much scraping, no broken bones kind of thing. Recumbent seats and bars give some impact and scrape protection. Probably best to hang onto the bars to avoid hurting your arms / collar bones etc.
rimar20008 years ago
Excellent design. I envy you. The only objection is that the fork of the front wheel seems something weak to support the weight of a mature person (and quite robust).
Woodenbikes (author)  rimar20008 years ago
The fork and I have a little competition going to see who is robuster. I already know it's more mature. For safety, I ride carefully, on flat smooth roads, under 15 MPH while wearing a helmet and clean underwear.
Um...what?(the last 2 words)
Bryan Smith6 years ago
Pocket Protector! My Dad is an engineer and uses pocket protectors too!
I've used CAD before, pretty useful and much more easy than the other CAD (computer aided design). There's also my favourite method of, "stacking up random crap from around your work area/little part of the dining room until to simulates the height parts need to be" :P.
Cool bike, too
coolguy6 years ago
You should get one of those mini chain link steering wheels (like the ones that latinos use on custom bikes and are just small enough to allow you to steer it with handcuffs on) to use for steering. It would solve the turning radius issue and make it that much more awesome.

Like This
That's pretty cool. I can tell you're an engineer by the way you layed everything out in cardboard ahead of time (Step 1-2). Judging by the picture in step 8 it doesn't look like you have a very tight turning radius. Good Instructable.
i thought about this a couple days ago when i rode into town on my bike, cause it was 5 miles, all i could think about was the padding on this bike, that could have let me sit down with out anything hurting
greenjedi7 years ago
HAHAHA! i actualy had this idea awhile ago, and now its here on instructables, thats crazy!
that would be awsome if you made a office chair scooter
bedbugg27 years ago
oh man...if you fall of that youre screwed
I am very impressed with your office chair bike. It has the most comfortable seat I have ever seen on two wheels although I am concerned about its stability and the pressure on your legs. But you say you're able to ride 15mph on flat surfaces, so that's cool.

I like the idea of encouraging the local dumps to set up exchanges - I don't think that any such exchanges are available in the UK at the moment. Keep up the good work!!

Office Chair UK.
IdahoDavid8 years ago
Sweet. But is it ergonomically correct for using your keyboard? It really needs a place to bungee-cord a laptop and printer, a coffee cup holder, a phone/answering machine and perhaps a two-drawer filing cabinet. Think of the advantage of attending meetings. Your workspace would be right there with you and all you would need is the donuts.
Woodenbikes (author)  IdahoDavid8 years ago
Good ideas! It could be just the thing for those sprawling corporate campuses (campi?).

You may enjoy this site about an earlier pedal office.
dude, that WOULD be cool - forget the paniers, strap on some filing cabinets!
dkfa8 years ago
What if you fell? You cant get off fast.........but I understand the office chair theme
quadleader8 years ago
where i live we have this place called the exchange, its where all of the stuff that may still be usable by others goes, bikes cameras computers all kinds of stuff its really cool i actually got my bike there and a digital camera a macintosh (power mac g4) so then you dont have to go dumster dipping.
Woodenbikes (author)  quadleader8 years ago
Sounds like a great system. My local dump does not allow that, but I went to one in frugal area that was very well organized with different outdoor tents and tables for different goods like excercize equipment (largest volume) and small appliances, big appliances etc. Folks should ask their local dump authorities to start the exchange to help preserve the climate.
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