Introduction: Quadrocycle

Picture of Quadrocycle

In every country all over the world the pollution problems are very high , we have smoke coming from cars , busses , industries and homes. So this made me think how, I , as a citizen of my country , a citizen of this world want to eradicate the pollution problem and make this world a more eco-friendly place. So the solution to all these problems, is the DIY Quadrocycle , it is pollution-free and one other advantage is that you burn more calories while riding this vehicle.

Step 1: Start With the Base

Picture of  Start With the Base

So to start with this project , it is better to start with the base, the size of your Quadrocycle really depends on your preference , the size i choose was a really random length and breadth , but my main aim was to just fit all the features in it easily.

Total length of the base rod = 2102 mm

The breadth of the cycle car , is kind of complicated because totally their are three rods that go in as the breadth of of the vehicle. The front and middle rod is 1095 mm and the breadth of the 3rd rod located at the back of the cycle is 1230 mm , this varied measurements were done to fit in different features , but you can go ahead and modify it they way you prefer.

And make sure these rods are hollow because you will need to pass an axle through it.

So once you've welded all these rods together your ready for the next step.

Step 2: The Steering and Front Wheels

Picture of The Steering and Front Wheels

The steering I thought was the hardest , but after careful study , it can be accomplished quite easily. Just look at the pictures above that i took and i' m sure you'll breeze through this step.

Their are a lot of pictures i have taken and uploaded, so i hope that will help you guys if you wanna build this fun car.

The car is equipped with 28" wheels but i'm sure other sizes will go to , it's just the height between the ground and your vehicle that will differ.

Step 3: Brakes and Back Wheels

Picture of  Brakes and Back Wheels

The back wheel axle passes through the middle rod of the cycle and not the last one.

For the brakes of this vehicle , i made it in a way that only the back wheels get the braking system and not the front wheels , because i found it a little challenging to put brakes in the front , but feel free to try it. So the back left and right wheel each get their own separate brakes. I also equipped the back wheels with mud guards , you can fix mud guards in the front too but it's really upto how much you wanna spend in this eco-friendly project .

Don't forget to put bolts on the axle after you attach everything on each side , so that you can prevent all the gears , braking system and wheel from falling. You might need to do some threading on the axle , depending on the wheels .

You also might need to buy longer brake wires because your braking system is going to be at the back , and so the distance from the front handle bar to the back is quite long.

Step 4: Pedal and the Seats

Picture of Pedal and the Seats

The seat is actually quite a convenient one , because i made it in a way that a person of any height can use it . wondering how ? , the seat is adjustable , so according to the person's height they can move the seat backwards or front to pedal well.(please look at the pictures to get a better view)

Seat sizes vary according to one's preference, the dimensions i used where :

seat base length = 359 mm

seat base breadth = 303 mm

seat back length = 455 mm

seat back breadth = 303 mm

and these measurements are only the dimensions of the wood i used and not the blue frame size.

The crank arm is located 585 mm from the front rod of the Quadrocycle ( this is according to my frame size )and accordingly i fixed the pedals too. For the chain , you might need to attach two chains together and make it as one, as the distance between the two gears is quite a lot .

Step 5: Steering Wheel and Handle Bar

Picture of  Steering Wheel and Handle Bar

The left bar to hold the steering wheel was welded 725 mm from the front rod of the cycle car , I inclined it to about 45 degrees and the length of that rod is 605 mm. you can use a normal cycle handle bar or a steering wheel if you like . You can also equip the handle bar with a honk or even a bell.

The right handle bar , performs no function , but i felt like building that part so that the person sitting in the right can get a better grip by holding on to it while pedaling. The angle of inclination for this bar was just a random angle that i took, so you can change it to whichever you prefer. The right bar was welded 260 mm from the front rod of the cycle car , the length being 800 mm and the length of the handle bar located on the top of that bar is 300mm. i made that handle with a PVC pipe and then fixed it .

Step 6: Ceiling and Extras

Picture of Ceiling and Extras

In my country has it gets very hot in the summer , I decided to add a ceiling to this vehicle , and coincidently it also served as a very useful feature during the rainy season . The ceiling material is tarpaulin, I would prefer you to use white , as it reflects sunlight . I used blue because it matched the color of my Quadrocycle.

The length of the ceiling is 2255 mm and the breadth is 1150 mm , just make sure that the tarpaulin covers the entire vehicle. Another useful thing , is that this ceiling can be taken out. When you don't feel like having this ceiling , you can just pull it out including the four PVC pipes which hold it . For making the PVC pipes stand , take a hollow cylindrical metal pipe and weld it to the sides of the car and then simply put the pipes in the metal cylinders , but don't fix the pipes permanently as you might wanna take it out sometime or the other.

So as you all know the cycle can accommodate two people only, but since I wanted to make it a four seater , I placed of board of wood at the back , so that one or two people could sit on it . The length of the board of wood is 990 mm and the breadth is 533 mm .

The back seating is a multi-purpose place , you could even store boxes , or if your going on a picnic , it might come in handy to hold all your picnic stuff.

Now after your all done with your Quadrocylce , your ready to take it out for a spin , and just make sure the brakes and wheels are attached tightly and properly.

I also wanted to add a lot of cool functions to this Quadrocycle , but since I didn't have the time , I just left it as a basic or in other words a simple Quadrocycle.

Some other ideas that you might like , that i really wanted to do was:

1. Bluetooth speakers

2. Cushions for all the seats

3. Head lights and tail lights

4. Solar powered fans

5. Phone charger ( generates electricity from the cycle wheel and charges your smart phone )

So it's really upto your imagination and creativity , you can equip you vehicle with anything you like , use any color paints you like,or mix it up and paint it with every color possible. You can change the dimensions of this Quadrocycle , seats , modify it , just make sure you protect your environment and use eco-friendly devices to make this vehicle better .

And most of all don't forget to have FUN !!!


poppa50 (author)2017-03-12

lovely design, it gets hot in the Arizona Desert as well, and windy. It would also accommodate those whose balance is not good enough for a standard bike design.

samayaraj (author)2016-04-17

Nice built vikram. Keep rocking :)

rspellicer (author)2015-04-28

Regarding gearing, we get a lot of Japanese surplus bikes here in the Philippines that use internally geared hubs rather than derailleurs and multi-sprockets. These bikes only have 3 speeds, but better than nothing. Install would probably be much easier as well.

KellyKandy (author)rspellicer2015-05-13

Great advice, i did not know about internal gears.

rspellicer (author)rspellicer2015-04-28

And BTW, smaller wheels will likewise make pedaling easier...

VikramA2 (author)rspellicer2015-04-28

Thanks for the advice , I'll definitely take all those points into note

baratacus (author)2015-04-21

wow this looks great, but also looks super high geared for the weight you are carrying. I know you don't want to get into the complexity of a gear shifting mechanism. Putting a larger gear on the back would probably make pedaling less effort though. We have a quad cycle at our school, and it has a really high gear and can barely get up a small grade without someone getting off and pushing.

VikramA2 (author)baratacus2015-04-21

Thanks and Do you mean putting a smaller gear at the back and a larger gear in the front ?
Because I think then it will definitely be easier to pedal

geraldpaxton (author)VikramA22015-04-26

you need to rethink that!

VikramA2 (author)geraldpaxton2015-04-27

rethink ? Which one?

geraldpaxton (author)VikramA22015-04-27

larger in front and smaller in back would make it harder to pedal

rspellicer (author)VikramA22015-04-22

First of all, I LOVE IT!!! :)

Regarding gearing, you would do the opposite; larger gear in the back and/or smaller gear in front.

spoesse (author)2015-04-26

No pics of the build? I'm kind of doubting you made this yourself. It is a great bike though, whoever built it.

VikramA2 (author)spoesse2015-04-26

This is my first instructable , and I'm new to all of this . I never knew how to go about it . Plus I finished building this before the competition started , then I realized that it would be great to participate in this, when I looked at other people's project , some of them also did not show the building , so i just went ahead .

mbittle (author)2015-04-23

I'd love to see a 4-seated version if someone would go thru the effort because I am unable to do this time...

mbittle (author)mbittle2015-04-23

plus it would be useful to many lol

EndureReclaimRebuild (author)2015-04-23

This is simply awesome. +1 internet (author)2015-04-22

I love the bike, I always wanted to make one, but adding an electric motor & solar panels for a roof. baratacus was correct about the gear, the closer the two gears are in size the easier it will be to pedal, but if you go too close, you will have all power & no speed, you have to find the happy medium. Also you use the word solder when you talk about connecting tubes etc. together, you are using regular pipe lead solder are you? that will never take any stress, or not for long, one must weld or braze metal together for strength.

great looking bike though, looks like to put a lot of time & effort into it!

Hammerhead46 (author)

I think when he says "Solder" he really means "WELD"

VikramA2 (author)

Thanks again , and I changed the words now

VikramA2 (author)

Thank you for finding that mistake out , it's actually welding and not soldering guys , sorry for that mistake . Once again its welding .

Thank you :) (author)VikramA22015-04-22

Good job, wrong herbage, sh@# happens, still a great build!

SwiperF (author)2015-04-23

Though yours is a quadrocycle, in my place we have tricycles.

Its just much like adding a side-carriage to a pedal bike or a motorcycle. It can carry up to four adult people (1 driver + 3 passengers) and some baggages. We also have roofs for them as well.

VikramA2 (author)SwiperF2015-04-23

Since this is my first instructable , and also the first project I am building , I'm not very experienced in all of this . But I'm proud of what I've done and what all my quadrocycle can do .

phugedaboudet (author)2015-04-22

do you have any measurements for the steering linkages to keep the thing stable in cornering?

VikramA2 (author)phugedaboudet2015-04-22

I think I have some measurements , but just to make sure what your are referring to , could you be more specific

vrudec (author)2015-04-22

I would sprockets moved forward (with a ratio of 1: 1) to separate the shaft and it would put chainring with 3 speed with the bike and the rear axle (where there is now sprocket) to put the sprocket to the rear wheel bike with more speed . That would be a lot easier to drive and would increase opportunities for gear selection.

Ganesh manL (author)2015-04-22

Home made design and thinking.Its OK.

osbrook (author)2015-04-22

With a large canopy like that and a heavy frame it would be easy to add solar panels to the top and a couple of lead acid batteries to help power it. Solar power alone would not power it but the batteries would get changed while parked. Great idea I have been meaning to build for a while.

tariqkhan (author)2015-04-21

Your bicycle is good, but front two wheel will not work properly and will shivering. One wheel in the front with handle / steering will work very good and full of control.

Mimag (author)tariqkhan2015-04-22

Mimaproviding the

Mimag (author)Mimag2015-04-22

Proving you have caster on the front wheels they should not shiver

roger.brown.921 (author)2015-04-21

Excellent concept! I agree with a couple of posters that though it would add complexity, one would need to engineer the addition of probably a 21 gear shifting mechanism for the front and rear sprockets as on a mountain bike. It would make it much more versatile for any kind of distance commuting. The seated position is not unlike the popular recumbent bicycles that have been around a while. The recumbent seating position gives you much more "push" power on a hill and multispeed gearing would be that much better. The only drawback, at least in most US areas I'm familiar with, the width of the cycle limits you. Nearly all bike lanes are designed for one bicycle width. This is in effect two bikes wide which is prohibitive in most instances. I would add bright LED head and tail lighting with lithium ion rechargeable batteries for safety visibility. And add more form fitting and upholstered seats with adjustable seat back rake angle. That could be done without much of a weight penalty and be a huge comfort plus. Very good start on an idea. Good ingenuity!

VikramA2 (author)roger.brown.9212015-04-21

Actually this is too everyone , many of you might think that this bike wouldn't fit on the American bike lanes , but actually since I'm from India and from where I come from we don't have bike lanes .
So it's just the plain roads that we have to use , so size didn't actually matter to me in building the quadrocycle. But yes if any of you build this bike of the size I used or if I bring it to the U.S. it will definitely be a huge problem .

Thank you for the great advice on how to modify the quadrocycle , the lights I will definitely use :)

elima2 (author)2015-04-21
zenTaurus (author)elima22015-04-21

or this:

fred3655 (author)2015-04-18

Is there a particular thickness of steel tube you recommend? After all, it would have to support at least 220 pounds (100 kilos) with 2 people, double that if 4 people. I would include a small battery with solar charger to run a horn, LED lights, phone charger, Bluetooth speakers, etc. If a solar panel is expensive, you could charge a motorcycle battery or Lithium batteries at home before leaving. Great job! Love the idea.

VikramA2 (author)fred36552015-04-18

Thank you very much , I appreciate it .

Their is no particular thickness of steel tube , I just went with the steal that was sturdy .
Basically what you need is something of good quality and strength.
So it's really up to what the shop has and how much you wanna spend. If you like I can recommend the shop to you , where I bought the steel tubes .

Their are actually a lot of tutorials that show you how to use a small motor , which converts the cycle wheel power to electricity that can charge you phone . But due to the lack of time , I made it simple
But thank you for the advice :)

cwhite62 (author)VikramA22015-04-21

check out this web sight.

DonnH1 (author)2015-04-21

I was wondering where a couple of people were coming from with mentions of batteries and chargers. I guess that would be a handy thing. I have a bike with a rear hub motor and a lithium pack and use it to help boost me up hills. I could see that being useful for something like this and as others mentioned a couple of times a gearing system. Where I live it's not just a question of getting moving but getting up and down some moderate hills. Another concern is the extra width compared to a regular bike. Some drivers get awfully impatient so guess this quad bike would not be suitable for some traffic situations. Still, it's an attractive idea. I would like to move away from the city where I live in Victoria BC Canada and move to a small town in Alberta Canada called Magrath, In Magrath they have wide streets because back when the town was first built they used horses and horse drawn ploughs to move winter snow into the middle of the road. So, during the summer months a quad bike would have little trouble getting around. Very little traffic and wide streets. There are some other Canadian and American cities and towns like that. Anyway, thanks again. Hoping you don't stop with this one but come back with more designs.

valleyboyz (author)2015-04-21

WOW! I always wanted to do something like this, now I MAY ACTUALLY TRY IT.

Fantastic Instructable can't explain how much I love it.

fleebell (author)2015-04-21

Nice looking quad.... Do yourself a favor though and change out those front spoked wheels ( and maybe back ones too to match) over to the mag type, either plastic or aluminum will do. The reason I say this is those wheels won't take the side forces very well and are going to end up dished very easily. The plastic or metal mags won't do that on you. Been there and done got the t-shirt!

Snidely70448 (author)2015-04-21

I could be wrong, but I think that bike wheels need to be supported on both ends of the axle, not just one. When only one end is supported the bending forces are many times higher. That's why forks are used.

zcheek (author)Snidely704482015-04-21

actually no. Quad bikes use standard bike wheels. the bending isn't an issue

dimai1 (author)2015-04-21

Great idea! Thanks.

In a few time i have to do it too!

how much weight can withstand?

VikramA2 (author)dimai12015-04-21

It can definitely withstand like a lot of weight .
This quadrocycle is a a very sturdy and strong model because of the steel base . I can't tell you the exact amount of weight it can withstand , but I can tell you it can withstand more than 200 kgs (because I sat with my friends and took a ride on it , we needed a lot of strength to pedal but it went quite smoothly )

sgsax (author)2015-04-21

Great pictures! They really highlight the structural details nicely. You can probably reduce weight by using aluminum tubing instead of steel, though that would probably increase your cost. You would need a thicker gauge for better stiffness, too. Lower weight would make it easier to pedal.

VikramA2 (author)sgsax2015-04-21

Thanks for the great advice :)

I will definitely consider it next time

SCHLEPIC (author)2015-04-20

Well done. Where did you obtain the wheels for your quadrocycle? Did you consider adding gears when creating it?

VikramA2 (author)SCHLEPIC2015-04-20

Thank you

I bought all the parts in India , including the wheels . I am sure you can get these 28" wheels in any local bike shop .

I thought gears would be a little too complicated and costly and hence I did not use them

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