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This whole thing started off with me finding rusty holes in my car and I figured for the cost of paying someone to fix it I could buy a welder and do it myself, seems logical, right?

I was speaking to a friend about needing to learn how to weld and he said why not build a bike (we originally met while I was working in a bike shop and he came in looking for parts for a chopper he was building) he lent me a couple of books by Atomic Zombie, who you should check out, that dude builds some cool stuff.

His website and forum can be found at www.atomiczombie.com

After toying with the idea for a while it seemed like a good one but I was concerned that it wouldn't come out right so it was decided that I would build something a little silly, so, hence the car wheel bicycle was born.

Step 1: Tools And Meterials

So you're going to need some stuff,

Materials
Very few raw materials went into this but the few that did are...

  • Car wheels, obviously!
  • Some mild steel tubing, 1 1/4" and 3/4" about 4 meters of both
  • A donor bike

The donor bike was used because it was an easy way of getting all the bicycle parts that were needed, after all it is a bike! also there are some bits of the frame that have very precise dimensions, the inside of the head tube and bottom bracket shell where the bearings go have what is called an interference fit meaning the bearing cups are pressed in and won't fall out, the tolerance of an interference fit is a tiny amount something in the hundreds of a millimetre, I would never be able to create these dimension with the tools I have so it was easier to cut these parts from an old frame, you can see in the third picture all the parts that I used from the BMX.

Tools

Again I didn't use that many tools to build the bike but here's a little list.

  • A welder, any welder will do as long as it sticks metal together, I have a MIG welder
  • An angle grinder with cutting and sanding disc's, I found a flap disc work best for sanding
  • Measurement devices, tape measure, vernier gauge
  • A drill and a couple of bits
  • Spanners and Allen key's for the bicycle parts
  • And a hammer, bigger ones are more fun but smaller ones still do the job

I also used a bench grinder and belt sander but you can do it all with the angle grinder if needs be.

And of course there's some safety stuff, goggles, ear defenders, welding mask and gloves, and a fire extinguisher.

I didn't start out with the extinguisher that was a later addition after my shirt caught fire while cutting with the grinder,

I have figured out that all these tools want to do is hurt you, please be sensible, concentrate on what you're doing, wear eye and ear protection, ask someone for help if you're not confident and don't weld while wearing shorts, those hot bits of metal will find their way into your shoes, trust me.

<p>Hey people, Thanks for all the kind words, I never expected this kind of reaction for it. </p><p>To answer a few questions that keep coming up...</p><p> The gearing is now low enough to get going from a standing start and it isn't anymore work than riding a bike with soft tyres. </p><p>It corners much better than I ever thought it would, you need to put your weight into it but once it's on the edge of the tyre it can turn very tight.</p><p>When you're on the flat part of the tyre it wants to follow the camber of the road, so you need to keep an eye on whats coming up to counteract it, otherwise it rides just fine.</p><p>I need to find some scales and check but I guess it weighs somewhere around 35 kg.</p><p>Again thank you all for the kind words.</p><p>Ash.</p>
<p>First of all, awesome project. Regarding your comment on cornering and getting on the edge of the tire, it seems like motorcycle wheels and tires would be a natural choice for a Version 2. A bit of a different look and maybe not so fat, although there are some beefy motorcycle tires, but it would give you more natural single-track vehicle dynamics and still be fatter than the fattest fat bikes.</p>
<p>You've basically describe what I was thinking for my next project, but you missed out the electric motor...</p>
<p>I've added a video to step 7, I will update the 'ibble with a better one as soon as I can.</p>
<p>cool project , just use 2 big (rear) Motorcross wheel istead</p>
<p>tremendous work.</p>
<p>I admire you is not and easy proyec God bless.</p>
<p>Best Build EVER :)<br>Congrats on the fine build, and learning to weld in the process! <br>Very Cool! </p>
<p>When I put larger (bicycle) tires on my training bike I found the extra rolling resistance of fat tires slowed me down considerably. I hesitate to think how you get off the massive flat area of these tires to enable corning but I guess if learning to weld was the principal reason for doing this, that's fine. Even motorcycle tires will impede peddling because of the amount of rubber on the road. They don;t use narrow tires on 50cc motorcycles for no reason.</p>
<p>They do have a fair bit of resistance but the wheels also carry a lot of momentum so once its over 5~6 MPH its not too bad. A bit of a weave combined with the weight of my belly and it leans into corners OK. and yeah I never intended for it to be practical it's only for fun.</p>
<p>Very cool project! I have one suggestion that may not be as cool looking, but will improve handling greatly. Yours is a single track vehicle, but the tires are designed for a dual track vehicle. Why is this important? Single track vehicles turn by leaning, so the tires must have rounded-treads. Automobiles stay flat in turns, hence flat-treaded tires.<br><br>Here is an excellent article that explains it: <br>http://genjac.com/BoomerBiker/Two%20Wheeled%20Physics.htm</p>
<p>Neat-o Bike! And a great FUN ( After All! ) Project-o! Simple, &amp; easy, (I can see the whole thing at once, few projects like that!). I see some Responders doin' some Over-Thinking &amp; fussing with non-essentials to the point that your idea becomes another kind of animal. Maybe ya have one of those quotes in yer place; K.I.S.S= 'Keep It Simple Stupid' , I do, it's called a Reality Check! Thanks for this, it's refreshing!</p>
<p>Nice work dude! </p><p>PS. You may want to remind the 'ibles team that you need a 240 volt welder, not 110 :)</p>
I love it. I have only one suggestion, and that is to replace the tyres with some nice new ones, preferably from the hot ridding/drag racing scene with raised lettering. Beyond that it's a marvel, I have the tools and patience just not the time. Or the beard.
<p>Check out http://www.tirestickers.com . They sell white letter stickers for car tires that are permanent, and you can even choose the size of the letters, or order custom lettering!</p>
<p>They're not very common here in the UK but I have been looking.</p><p>In total it didn't take all that many hours to build it was just spread out over a couple of months, certainly less time than it takes to grow a beard.</p>
<p>Hey man, for the time being you could use white paint marker to colour in lettering for that race wheel look! Whereabouts in UK are you? I'm down in South East and would love to cruise on that thing haha!</p>
Rodding not ridding. iOS grrr.
<p>That's one mean looking bike!</p>
<p>Very cool project. </p><p>While I haven't read the whole article yet or the comments, watching the games right now, I will read all this, but for now I was just wondering the following...</p><p>Have you thought about adding a 1,000 watt or larger mid frame electric motor and make it an electric bike?</p><p>How hard would it be to replace a tire?</p>
<p>Here in the UK the laws for electric bikes say that the motor can't be over 200 watts so anything bigger would have to be registered as a motorcycle and because I've built the frame myself it would be a pain getting it done.</p><p>For me it's quite difficult to replace a tyre but I could take the wheel to a garage and they could have it done in minuets.</p>
<p>https://www.gov.uk/electric-bike-rules</p>
Thanks for the reply. <br><br>I agree, 200 watts on tires this big is all but pointless really, heck in my, not so important opinion, 200 watts is not that much even with a regular bike tire, but what do I know.<br><br>Can't you even put a large motor in for offroad use only?<br><br>I live in Louisiana, and I'm thinking these wide tires with very low ground pressure would be the ticket in the swamps, but way to hard to power any distance, without some sort of electric motor or gas engine to help it out. I prefer electric because it's quiet.<br><br>Thanks again for answering me and keep up the great work.
This thing is still better looking than the average Miata.and
Verry nice instructable I may have to do a spinoff using alittle 6.5hp engine I have sitting around
<p>Super Awesome project!</p><p>You did a very fine job! I wish i could weld like you do.</p>
<p>When I started the bike I'd only practiced welding for a couple of hours.</p>
<p>Great Job ! </p><p>Is it aluminium wheels ?</p>
<p>It's all steel.</p>
<p>This is one of the coolest DIYs I have ever seen the light at the front, the color of the bike and the graffiti background is so on point I can't imagine a cooler combination!</p><p>Awesome job!</p><p>I'm already planning my attempt </p>
<p>dis looks FUN</p>
<p>this is excellent, yes tere are some dodgy bits, thats the whole point, would it be possible to put tubes over the center section of the axles and weld it to the outside sections to make them stronger?</p><p>The other thing is, be extra cautious when welding rims with tyres on because frequently the welding causes a small fire, which obviously goes out once the oxygen is used, but can and has done damage to the top of the tyre, but the real danger is re inflating the tyre BEFORE the fire goes out, that bit has killed people! </p><p>On a me important note, did it help you gain the skills required to fix your car?</p>
<p>car tires are 50 pounds, the one that kill are usually the size of 5 of these, but it is a good thought and precausion</p>
<p>yeah, usually, usually aircraft don't fall out of the sky.</p>
<p>And I've now got the skills to fix the car but I haven't done it yet, been too busy riding the bike.</p>
<p>If I'm honest, that's al that metters.</p>
<p>I did consider adding a sleeve over the the weld in the axles but there isn't much stress on them in the centre, most of it is a compression force from taking the play out of the bearings. The weight of the bike is goes about 40 mm along the axle, through the bearings and into the hub body. I will strip them down at some point to check but they're still straight and the bearings haven't come loose.</p><p>I didn't even think about a fire on the inside, I'll be more careful next time, Thanks for the warning.</p>
<p>This is really awesome! If the Batmobile in the Dark Knight had a bike rack...THIS bike would be be strapped to the back! Wayne Industries should be calling anytime now.</p>
<p> I've never seen it, but it can and does happen...Bridgestone has a couple videos on pyrolysis as well. Be careful, kids!! Nice bike though, thanks for the idea. On my short list!<iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/HiLeji8bLOk" width="500"></iframe></p>
Just awesome, I do have to agree with a couple of the comments. Myself I would be adding a motor for pedal assist at the least, not necessary but I would. ☺
<p>Excellent! On several levels!</p>
<p>I bow to thee. This is a really cool bike. Add a Harley motor. :)</p>
Hey this bike is inspiring. It seems like it has applucation right for soft ground and or heavy load.
<p>Where's the &quot;Like&quot; button! I Like, Like, Like. (It needs brakes? LOL) I would have never thought that it would lean on a curved top road. Makes sense. So many things -- including shop techniques -- are only discovered upon building something. Nice word. </p>
Awesome job! About how long are the straight top tube and down tubes?
<p>They are both about 71 cm ~ 28 inch long and the horizontal part of the down tube is 28 cm ~ 11 inch</p>
<p>Hi,</p><p>Thanks for sharing.</p><p>I want to make a simular one and I would like to know wheel size you use (If possible final bicycle dimension please)</p><p>Thank you!</p>
<p>You can use any size you want but I would suggest not going smaller than a BMX size wheel, and the frame was made to fit me that's why I didn't include any measurements.</p><p>That being said... </p><p>The wheels are 205/55 - 16</p><p>Seat height is 78.5 cm ~ 31 inch</p><p>Seat clamp to the head tube is 84 cm ~ 33 inch</p><p>Bottom bracket is 47 cm ~ 18.5 inch forward and 43 cm ~ 17 inch lower than the seat clamp</p><p>Wheel base 134.5 ~ 53 inch</p><p>Overall length 185.5 ~ 73 inch</p>

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