Homemade car bike. What is a chopper, or do-it-yourself bicycle? "Cover" to protect the pen frame

The most familiar things that occur in everyday life almost every day are sometimes simply amazing. "There is no need to reinvent the wheel," say hypocrites and bores, but fortunately, designers and technicians do not listen to them and shock the world with more and more new inventions. And today we will talk about this - we will consider the most unusual bicycles in the world. And we will also be surprised, perplexed and admire them.

Wooden "Japanese" from Oshima

Once upon a time, absolutely all bicycles were made of wood. Then this expensive and rather heavy material was replaced by light aluminum and plastic. But one day the Japanese designer Yojiro Oshima came up with the idea of ​​a well-forgotten old, often giving a new life. And so his amazing bike was born, completely made of wood.

Of course, this visionary from the Land of the Rising Sun was not the only one who dared to create unusual bicycles from wood. And besides his world-famous bike, there are many others.

Scooter Pibal

Tastes, as they say, do not argue. Some people love bicycles, while others prefer to ride a scooter. Well, what about those who are crazy about both? It's simple - Philippe Starck, the French developer who gave the world a scooter bike, took care of them. translate it vehicle from one position to another is possible with a slight movement of the foot.

The new transport was appreciated not only by lovers of everything unusual, but also by athletes. Doctors are in solidarity with them - after all, such unusual bicycles-scooters allow you to use a wide variety of muscle groups while riding, evenly distributing the load and providing the opportunity to relax. The option of adjusting the saddle in height allows both men, women and teenagers to ride this transport.

Homemade bike Sawyer

Designer Juergen Kuipers gave cyclists an amazing opportunity to create unusual bicycles with their own hands. His invention won the hearts of not only athletes, but also members of the prestigious international competition in Taipei, for which Kuypers got the honorable first place.

Unusual bikes from Jurgen go on sale in boxes and are supplied with detailed instructions by assembly. By the way, some of their details are also made of wood.

Folding bike Mobiky

Do not think that this one is great - just a frivolous toy. It weighs no more than a baby stroller (12 kg), but it can safely roll a passenger weighing a whole centner! And its small wheels allow you to travel the same distance per revolution of the pedal as full-size ones. These are such unusual bikes, these Mobiky...

But their main miracle, of course, is the ability to assemble. A folded bike can be thrown over your shoulder, jump into the train with it and roll off towards adventure. After all, not everyone has the opportunity to go around all the interesting places, pedaling endlessly? Some people are running out of time, and some just don't have the patience to cover the entire journey on their own. For such, Mobiky was developed.

Electric Worthersee

Audi knows how to make reliable cars, in which everything is thought out to the smallest detail for the comfort of the driver and passengers. It seems that this habit developed over the years formed the basis for the development of the bike. Why else would AUDI Worthersee deprive the pilot of the need to pedal? Yes, and accelerate at the same time to a speed of 80 km / h, without straining at all!

These unusual bikes, which look more like scenes from futuristic motorcycle movies, are equipped with five riding modes and nine speed modes.

Lamborghini

When it comes to the best transport in the world, how can you do without a Lamborghini? Of course, this legendary manufacturer did not leave the bicycles without attention, releasing a limited series in honor of his anniversary.

What can you say about these bikes? Genuine leather, high-quality branded paint, a unique system of reliable brakes, the best tires, the highest quality materials - Lamborghini does not change itself in anything.

Anti-theft bike from Kevin Scott

Tired of lugging around with locks and chains, but don't want to leave your pet in the parking lot unattended? Don't worry, Kevin Scott has already figured it out!

We take a bicycle, bend it in half, wrapping the frame around the post. Close the latch and voila! A two-wheeled friend is securely chained to a pole and will certainly wait for you safe and sound. Disassembling it, by the way, is just as easy. Of course, unusual bikes from Kevin Scott can not only park great, but also ride. Powerful tread, reliable brake system, ergonomic steering wheel and comfortable sports seat - what more can you ask for?

Solar ELE Solar

The most unusual bikes on the planet in the vast majority are environmentally friendly and do not harm the environment. The uniqueness of ELE Solar lies in the fact that, while having this advantage, it still uses energy. True, it is sunny, thanks to which its environmental friendliness and safety for others do not suffer at all. To generate energy, rays of sunlight are used, which are accumulated using plates built into the wheels. Depending on the position of the celestial body, the plane of the plates can be changed at your discretion by turning their surfaces in the direction of the source of light and heat.

In addition, he has an absolutely incredible appearance. Yes, you can't take your eyes off him!

Taga Bike - transport for sports moms

And for dads, of course, these unusual bikes are also suitable. And for other relatives who are in love with cycling.

This amazing transport is equipped not only with a driver's saddle, wheels and pedals, but also with a comfortable and safe child seat or even two! Now babies who have reached the age of six months can safely go on a trip with their parents.

Italtrike for little pilots

And what will those who are accustomed from infancy to sports and wind ride? Perhaps they will like the Italian beauties Italtrike Evolution or Oko - bright three-wheeled bikes, equipped with comfortable seats with tilt adjustment, reliable frames, sun hoods, possible wheels and parental handles.

These unusual children's bikes are available in different colors, have excellent handling and weigh very little.

Cykno Electric for retro style lovers

This extraordinary bike is equipped with a battery that can help you cover a distance of 60 km. Its design is based on innovative carbon fiber. This is where you should not believe in appearance - in appearance, he is a real old man.

Not only the shape helps to shade the retro style, but also the use of high-quality genuine leather. Complementing the image and wheels, so similar to spoked ones.

The rhythm of life in a big city today is accelerating more and more. Therefore, managing your two becomes quite difficult. As a means of transportation, cars or public transport are usually used. But both of these options have their drawbacks. Of course, there are also advantages, but they often cannot outweigh the disadvantages or are simply unattainable. That is why bicycles take up more and more space in everyone's life.

What is the reason for such popularity?

To explain what a bicycle is is at least silly. After all, every person, even if he did not have a two-wheeled friend in childhood, at least saw such.
The advantages of a bicycle as a means of transportation are quite enough - you can start by saying that you will only have to spend money on buying it. All subsequent operations, such as current repairs, can either be done using improvised materials, or they do not deserve attention at all due to small expenses. For example, replacing tubes or tires is a trifle compared to the same car repair.

In addition, no fuel is required - everything runs on your muscle strength. And it’s easier to ride a bike, in extreme cases you can even turn onto the sidewalk - which, for obvious reasons, is unacceptable for a car. Also, as a bonus, you get an increase in health, since a constant load has a beneficial effect on the general condition of the body. Yes, and a plus in the form of respect from the family and colleagues, even if at first not visible due to misunderstanding.

What are the best bikes?

We are now talking about such a thing as a bicycle frame. Indirectly, this is connected with the appearance of himself. This is logical, since road, mountain, sports bikes are different from each other. But there are more specific species- like BMX, etc.
It is impossible to say unequivocally which of the models is better. Bicycle frame (its design), wheels, number of gears and speeds - it's all very different from model to model. Accordingly, it is necessary to select according to certain characteristics. The latter include the location of the action, the frequency of travel, as well as the required speed and maneuverability. It is not worth talking about the need for jumps and even more - tricks, since this is already a rather specific zone.

Why is the right frame important?

The point here is that this is the supporting part of the structure, on the basis of which everything else is assembled. A bicycle frame is a necessary thing for determining the size of the wheels, and the type of transport in general.

In addition, the material from which it is made also plays a role. There is a direct relationship between weight, price, and scope. However, there are other, less noticeable, but also significant factors - such as selection by height, weight, and so on.

Manufacturing of bicycle frames

You can buy an iron horse today almost everywhere. They are produced industrially, and therefore there will be no difficulties. Another question is, will the standard model work for you? Here the whole point is in standardization, that is, minimizing differences. But can you be sure that you are an average person without any deviations like too long arms or legs? Most likely no.

This is the reason for the need for hand assembly - the best bicycle frames are made this way. Naturally, the price of such units is quite high, but the quality is also good. However, there is another option - try to make a frame yourself. It is not as difficult as it might seem at first glance, but it has enough advantages.

Manufacturing details: geometry

The bicycle frame can be made by the most different ways. This will primarily affect the way you sit on the bike. Naturally, this is how the type of future transport is determined - whether it will be road, mountain or sports.

For all three, this characteristic can be quite low, since air resistance is an important aspect of the ride. Nevertheless, urban options are often made with a high seating position, because this is enough for trips to the park or even to work.

A common option today is a cruiser. It is worth paying attention here Special attention on sizes bicycle frames, since the whole structure is based on the fact that there are no loads on the back and arms at all. To achieve such a result, as you understand, is unrealistic - and therefore everything is simply reduced to a minimum. The design of such iron horses was borrowed from American choppers.

What is frame geometry?

As mentioned earlier, this part of the design is key, since it is the supporting support for everything in general. That is, the location in space of the wheels, pedals, steering wheel and saddle is determined precisely by the design of the frame.
Naturally, adjustment can be carried out, but only the easiest - if everything is made too mobile, then reliability will greatly decrease, and therefore such options are rarely resorted to.

Bicycle frame sizes are very important because of comfort. All people are different, and therefore it is quite difficult to make a bike for someone specific - this is done by separate workshops. The geometry, in this case, is adjusted in such a way as not to create awkwardness or inconvenience during control.

Preparation method

It would be wise to explain how to make a bicycle frame. The easiest way to use metal pipes due to the high reliability and availability of the material.

Pipes of the same diameter will be used - you need to make supports for everything that was described earlier. That is, wheel mounts are one of the most important parts. The way in which the parts of the front and rear wheels will be connected will show the future type of two-wheeled transport.

After that, choose a support tube for the saddle - consider height adjustment, this can be quite important. You also need to make room for the steering column. However, this must be done even during the assembly of the frame structure for front wheel- that's what you have to manage. But the frame design usually provides just a hole for threading the steering column. And in general, wheel holders are not always included in the design - this is usually for bicycles that are non-separable.

More specific details, such as mounting the "gearbox", cups for the pedals are placed at the end. The last step is painting and installing all additional equipment.

Is it possible to make everything from carbon fiber? That will be even better. The material is lighter and sometimes stronger than some metals. But getting it is not that easy, and it’s worth working only with certain skills.

Bicycle frame by height

It has already been said above that dimensions greatly affect the comfort of use. So, the size is the parameters of the length and height of the structure, according to which it is assembled. That is, if you increase or decrease the size of the frame, then the length (and sometimes diameter) of the seat tube, top tube and down tube will change.

It is worth noting that the correct definition of such a parameter as size is mandatory for everyday use of a bicycle. A comfortable ride in this case is required - this will help to avoid back pain, as well as unnecessary stress on the limbs.

In the cases sports competitions or professional training, a perfectly fitting bike is a must. It's all about distance and time in the saddle - any discomfort will eventually turn into real pain, and even serious injury.

Factory bikes differ in size markings - everything is exactly the same as in clothes - from XS to XL. However, this is not always an exact science, and therefore DIY assembly remains a common alternative.

Comparative dimensions

The dimensions of bicycle frames by height are determined as follows.
For mountain or city models, the smallest bikes will fit 155 cm, S is up to 165 cm. Medium sizes start from 156 cm to 178 cm. there are up to 195 cm. Of course, there are special models for large heights - they are not mass-produced, but there are usually several batches. So if your height is above 190 cm, you can look for the XXL marking.

Road and equally road bikes are produced with a smaller difference. Accordingly, from small to large - 157-163, 163-170, 170-178, 178-183 (intermediate size M / L), 183-190 and 190-198 cm. Thus, it is easy to determine the size.

Folding bikes are a little more difficult because they are suitable for all heights at once - you will have to choose the manufacturer.

Technical details

An important aspect of riding a two-wheeled friend is taking care of him. That is, the repair of bicycle frames, in principle, takes a lot of time, if problems do occur.

Problems can arise very different - this is due to a rather complex design and many attached parts. However, you can deal with almost everything on your own. In general, the following lists what problems may arise, as well as the procedures that need to be carried out.

Lack of trimming disc brake clipper. This causes serious problems - for example, uneven and rapid wear of the pads.

Fixing mechanical damage - any collision can cause one of the pipes to bend, leaving you unable to ride.

Trimming the head tube - if it is not done, then there may be some difficulties with precise control.

In addition, you may want to somehow improve your transport. This is usually done in two ways. In the first case, people attach various useful things to the frame. These include a bottle cage, pump mount, fenders, trunk, and so on. The second option is tuning and painting. This is airbrushing, illumination and more. But this is a topic for a separate article.

So, we figured out how to make a bicycle frame with your own hands at home.

But not every craftsman has an experimental chainsaw on hand. And just for those who have already run out of chainsaws, and the scope for the mechanization of life is still very wide, I suggest that you familiarize yourself with the review of homemade products on muscle traction. Today we will not consider a great many vehicles born from the mind of the inventors of the bicycle - this is a topic for a separate discussion. We will look at stationary solutions.

Perhaps the most simple and obvious application of a pedal drive is an electric generator. The great Chinese industry produces a great variety of all kinds of generators that can be installed on a bicycle in a few minutes, without even losing mobility:

• Roller-generator, pressed directly to the wheel tire.

• The hub-generator installed in the front wheel of the bicycle instead of the native one.

• Or even a USB charger mounted directly on the chain drive.

But, as the reader will correctly grin, these methods are extremely unsportsmanlike for our do-it-yourselfer. Therefore, we take sports, well, or not quite sport bike, a table, two rollers from a dot matrix printer, a car generator, an inverter and some bright paint:

Relatively quickly assembled, which cannot be said about the following designs:

And if you combine a bike generator with a computer, you can spend a couple of hours on the Internet with health benefits.

The next popular application of the pedal drive surprised me a little. It turns out that washing machines are often assembled with pedal traction.

Although it looks like a washing machine, it is already a full-fledged industrial machine for stirring soap:

To grind apples and beans, the following two bike grinders were created:

Watering tomatoes in a greenhouse is not a problem when at hand ... Or rather, a bicycle pump under your feet:

What does Chinese woman Kin Ming Sal cook for lunch, soy cutlets? And here the bike chopper is indispensable. “The family is big,” as the poet said.

In the hot countries of Africa, it is very difficult to supply electricity, and sometimes you want to drink a glass of a cocktail. Not a problem when there is a bike blender:

The hazelnut is of course hard,
Although walnut too,
However, this unit
They can be easily cleaned:

In countries North America is probably the most popular corn cleaning machine. How she does it from the photo did not work to understand. It should be noted all the brutality of the design, apparently this is a tribute to the American traditions of industrial design.

I think it was simple and unpretentious to supplement the manual drive of the mill with a pedal one:

A compact snow blower will help clear the paths quickly. Of course, if you have such smooth tracks.

And in conclusion, I would like to especially note our fellow countryman, plumber Mikhalych from Chelyabinsk, who designed and assembled a unique spinning design that allows you to increase the speed of fighting. In addition, due to the increased diameter of the reel, a high torque is achieved and, accordingly, the tension force of the fishing line increases. Unfortunately, the issues of effective braking of the reel when casting gear and reliable fixation of the fisherman on the shore have not yet been finally resolved.

These designs are similar to cool motorcycles and their "big brothers" at the same time, but longer. You can buy them at the store or make a bicycle with your own hands.

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From motorcycles they took a long frame and a fork, a large steering wheel. Thanks to the unique design, the center of gravity was shifted, making the vehicle more rolling. Thanks to this, the chopper will easily roll even on bumpy asphalt.

In Russia they are last years are gaining popularity.

Additional benefits include the following:

• refined appearance;
• unique style;
• high comfort;
• wide tires that allow you not to feel the unevenness of the coating;
• the possibility of electrifying and turning it into a bicycle;
• affordable tuning;
• unforgettable driving experience.

On the site http://megavel.ru/category/velosipedy-choppery/ you can get acquainted with the models and the price, which cannot be called low. How to be? You can do it yourself, and for adequate money.

If you strictly follow the instructions below, which use parts of old bicycles and improvised materials, it is quite possible to make a vehicle with your own hands. It will turn out no worse than what the trading network offers.

An old Wisp Raleigh women's bike is suitable for making a chopper, which will turn into a wonderful cruiser.

Necessary materials and tools

So, in order to make a chopper with your own hands, you need:

• welding machine, type Clarke 105EN;
• donor bike;
• durable steel pipes for the manufacture of forks and frame extensions. The diameters of the pipes for the frame are selected so that two pipes of different diameters can be welded (this is easier and more reliable than welded pipes of the same diameter),
• sheet steel 1.4 mm thick for hopper plates;
• 2 new chains that will be required for the larger frame. They need to be connected together;
• pipe bending machine. It is needed not to cut elongated pipes at an angle, but to bend them, changing the frame angles significantly.

When the materials and tools are prepared, you can start making a bicycle with your own hands, turning an ordinary model into a chopper.

Fork manufacturing sequence

Step 1: Which model to choose?

At racing bike Raleigh Wisp, taken as a basis, an unusually shaped frame: the top tube goes from above to the rear hub, which is just “on hand” for us. It is desirable to keep this feature. The seat can be installed on a double top tube.

You need to start making a structure with your own hands with a fork.

Step 2: Chopper Fork

First you need to choose the right one.

We begin to make a bicycle with our own hands by dismantling the old one, for which:

• remove the steering wheel with the removal, the steering column and unscrew the fork;
• we position the bike in such a way that the steering column is at the optimal height while riding, without worrying about the corners - they do not count at this stage (see the picture above). We measure the required length of the fork, i.e. distance between the axle of the front wheel and top steering column. Approximately it is 122 cm. The size is decent, but this is for a chopper - a long bike! We select a steel pipe, 2-2.5 meters long;
• We cut the pipe in half with an angle grinder, grind the ends on the grinder and put the pipes vertically.

Step 3: Fork Dropouts

While the fork is two pipes. It will take two strong dropouts to get it to normal shape, allowing you to install the seat.

For their manufacture with our own hands, we stocked up with sheet steel. The thickness of the plates should be approximately 3 mm.

The photo shows how the dropouts from a bicycle fork need to be attached to a steel plate to outline the outline for further manufacturing. Blanks are cut from steel using an angle grinder.

The required accuracy should not be expected. Therefore, after the blanks are cut out, they are brought to the desired size by clamping them in a vise.

You need to handle the edge carefully, since the contact between the surface and the wheel depends on it.

The nest is carefully cut out so that it is not large and this does not lead to the wheel popping out. The axis in the nest should sit tightly. Do not allow backlash (fig. below)!

When the dropout blanks are ready, they are welded to the fork using a magnetic holder.

Important: dropouts do not need to be placed in the center of the pipe - they should be welded closer to the edge so that the spokes do not rub against the pipe.

At first, it is better to simply “grab” the dropouts by welding, and weld them securely after making sure that everything is installed correctly. At this stage, the time spent earlier on processing the edges pays off a hundredfold.

Step 4: make the top for the fork

So far, the future fork is two pipes to which dropouts are welded. So, it's time to cut the thread at the top, which will require nuts with washers and M10 bolts. In any store, such a kit is cheap.

You need to assemble the structure with your own hands, as shown in the figure, by welding each of the faces of the nut to the washer.

The bolt is no longer needed, so it can be unscrewed.

It's time to weld the washer with the welded nut to the pipe (future fork)

Step 5: DIY Chopper Fork Assembly

At this stage, there are two pipes, to which dropouts are soldered on one side, and nuts on the other. For further manufacture of the fork with our own hands, we cut it off at the old “leg” and make the base as flat as possible. We use cardboard as a template, on which we draw a semicircle around the tube of the new fork.

With an angle grinder, according to the template, we cut out the crown for the new fork. We do this very carefully so that the shape is as correct as possible.

To determine the width of the fork, you need to attach a wheel to the dropouts. Having placed a rod with a crown between the pipes (it should stand exactly if everything is done exactly), we cut out three holes from another cardboard into which the pipes will go.

We will use this template with three holes to make the base and top plates, after cutting the cardboard and giving it an aesthetic shape.

We start making the base plate with our own hands by cutting it out of a 1.4 mm thick steel sheet according to the template. On the steel we mark two holes for the legs of the fork, cut the sheet, as in the photo.

After that, we weld the finished base plate to the fork crown. It is important to do everything carefully, avoiding molten metal on the bearing race.

Now you need to make a stem, for which you can cut off the upper part of the existing stem or do everything from scratch if there is a steel pipe that fits the fork stem along the inner diameter. To do this, at an angle of 45 degrees, the pipe is cut using the same angle grinder.

Now the pipe is shortened to fit under the wedge and stem bolt. This completes the production of the takeaway. If you are using an existing takeaway, skip this step.

Once the new stem has been placed on the fork stem, place the stem and crown between the fork legs again, either by having someone hold it all or by strapping it together. It is important that the top nuts are one inch below the top of the fork. If everything is centered, the plate must be welded to the fork.

Step 6: Second Step of Making the Fork

We have two pipes that are welded to the crown and stem, which means it's time to put everything together. This requires a top plate. It is done by analogy with the base and the existing cardboard template. We mark the centers of the takeaway bolt and two legs on the steel sheet. If 10mm bolts are used, then a 15mm drill will be needed to drill a hole in the center of the fork, since washers will be used during assembly.

The upper plate is ready and it is necessary to fix it with bolts at the top of the fork.

The clamp holding the bolt will be discussed below. The fork is ready.

A wheel is attached to it and mounted on a chopper, as shown above.

Now, in order to ride comfortably, you need to upgrade the frame. And this is the next step.

Frame manufacturing

Step 7: First step

To cut the frame, it must be turned over and secured.

After some actions, the carriage to the front of the bike became closer. Now the frame needs to be lengthened.

We set aside the double top tube, which will look good on a chopper.

It is better to make a layout of the future frame before starting the assembly in order to correctly place the wheels and determine the desired frame height. To do this, it is enough, supporting the carriage, to lengthen the frame with the help of thin pipes.

In this case, the top tube was a little low, so it had to be bent to get the saddle at the right height. This must be done carefully so as not to break the pipe.

Well, if this happens, welding will help correct the situation.

If the design suits you, you can proceed to the next step, in which the frame is lengthened with steel pipes placed in the gap between the bottom bracket and the two pipes going down from the seat tube.

Here you will need a layout that measures the length of two pipes. Since the angle of the downtube was changing, a bend had to be made next to the bottom bracket. A pipe bender was used for this.

While the seat tube remains hanging, not fixed to anything, so it should be dealt with.

Again, use the cardboard as a template to make another plate of sheet steel that will be welded to the top of the horizontal tubes under the seat tube.

So the strength of the connection of the new two pipes and the rear ones will be increased. After that, the seat tube is welded to the plate.

There was a dangling top tube.

Another plate made of steel and a grinder-made socket in the seat tube, into which it must be inserted and welded, thus increasing the strength of the connection and reducing the load on the weld.

It remains to weld the two upper pipes to the steel plate, and they will stop hanging out.

Step 8: Step 2 of making the frame

It remains to strengthen the frame structure. This can be done with another steel pipe, welded between the bottom bracket and the top tube. This makes it possible to change the location of the seat tube, directed towards the rear of the frame for the time being.

Again, using the template, we make a plate, weld it to our pipe: at first slightly, and after choosing the angle, it is completely. The pipe must not touch the axis of the carriage. It should not go deep into the carriage.

This is how the finished frame looks like, made by our own for the chopper.

Step 9: How to make a saddle for a chopper?

Plank construction will do. In order to make it soft, we use foam, and for aesthetics, we take leather.

Between themselves, two boards are fastened with bolts. At the bottom, you need to drill two holes through which the seat will be attached to the plate. With the help of bolts with nuts, it must be securely fixed.

A construction stapler will help secure the upholstery with staples.

The skin is also attached to the seat with a stapler.

Steering wheel manufacturing procedure

Step 10: DIY Chopper Wheel

There are three ways to install it:

• install the old one. But it may not fit in configuration (ram's horns, for example);
• do it yourself if there are steel pipes left. It can be bent with a pipe bender or cut and welded to the desired shape;
• choose the one that fits the shape.

But, first you need to make or pick up a donor lock. If one is found, the mount is not difficult to make.

This is shown in the photo.

Finally, on the top plate made earlier, you need to install the fastening clips.

Weld them to the plate.

Also weld the clamp and insert the steering wheel into the mount. The steering wheel is adjustable.

Reliable brakes

Step 11: Brake System

If it was planned to use wheels from a donor bike, there can be no problems. If the wheels, for some reason, do not suit you, and you want to replace them with more stable ones, for example, you need a different suspension.

When carrying out welding work, be sure to cover the tire with a damp cloth so as not to damage it.

Check the operation of the caliper brake again before final brewing.

This is how it should look. The brake lever will fit perfectly from an old bike.

Assembly and testing

Step 12: Final Assembly and Testing

So the difficult but interesting work on making a chopper came to an end. It remains to conduct tests. Easier bike turn it into a single speed, for which you need to buy a single speed adapter.

They are easy to replace the old gear system. It was already mentioned at the beginning that the chopper bike is much longer regular bike so two chains are required. They are connected together.

Step 13: Completing the Assembly

A do-it-yourself bicycle is disassembled to be cleaned from welding splashes, the fork with the frame is painted in the preferred color. Bearing rings must be protected from paint during work, like other threaded connections.

It is more correct to apply the paint in a thin layer - this way you will make the painting even, without streaks. It is better to apply a second coat of paint afterwards.

Step 14: Possible Design Changes

If the model gets bored, you can disassemble it and make changes to the design by cutting, for example, back.

Step 15: Aligning the Back

Then take the back of a small mountain bike.

Here again, an angle grinder is needed to grind the extra frame parts.

Step 16: Properly Install the Extension Lower Pipes

Two pipes are cut off so that it is possible to weld them to the frame, extending the latter.

Step 17: Summary

Having welded and painted two long pipes, we assemble a bicycle, the appearance of which should turn out as in the photo above: the rear wheel is equipped with a foot brake in this model, which eliminates the need to equip levers, cables and the old rear brake.

Try to make a bike with your own hands - it's an exciting job and no less exciting rides!

Video: DIY Chopper

When starting to create bicycles with their own hands, craftsmen should evaluate how often and for what purposes they plan to use homemade bikes. A self-made two-wheeled structure is rather an experiment, an opportunity to prove to myself: I can do more than others, because assembling a vehicle from scratch is a troublesome business. Many parts cannot be made on their own, so you have to run around special stores for such components.

Another important point- to understand very clearly why each bike node is needed, which components cannot be abandoned, otherwise it will suffer or it will not travel more than 2 m.

Components of a homemade bicycle

Frame

If there is a frame left from an old, leaky bicycle, it’s great, the main thing is that it be in good condition and not have rust. If there is no frame, it does not matter either, purchase steel, aluminum or titanium narrow pipes.

The basis is a drawing, which displays all the components of the bike. It is better if the sketch is made in 3D mode on a computer, you can immediately assess the actual dimensions of the necessary parts and get an impression of the proportionality of each. Welding remains the preferred method of connecting functional components, if it is additionally planned to fix the trunk to the frame or, provide recesses for the bolts. Holes are also left for bolts for attachments.

front fork

It's hard to imagine homemade functioning bikes without a front fork. If you plan to ride a bike, sliding down the mountain and climbing up, it is better to build in a soft shock absorber. IN mountain models do not mount BMX plugs - they are too heavy. When making a plug with your own hands, calculate the following parameters:

• fork travel;
• method of fixing the brakes;
• preferred wheel diameter.

Transmission and brake

Transmission nodes are selected based on the amount allocated for this part of the bike. Experts do not advise assembling the chain with your own hands or creating a speed switch, just waste your time, good quality you still won't get it. Arriving at the store, choose a classic transmission, the placental format has a number of significant drawbacks.

They are divided into rim and disc. If cycling is done in dry weather, rim brake pads are suitable, they are inexpensive and greatly facilitate the design. Extreme travel rim brakes will not stand up - equip disc brakes. With the latest, riding safety and comfort for the cyclist are ensured.

The wheels, of course, should be bought ready-made, however, as well as the saddle. If you prefer a sporty style of riding - pay attention to rigid and elastic saddles that take into account the anatomical features of the cyclist.

It would seem that it is easier to choose pedals. Beginners in cycling believe that, apart from the classics, the designers have not come up with anything else, but they are mistaken. Upgraded fittings keep your feet firmly in place so your feet don't slip off so you don't have to make unplanned stops. This also increases the risk of injury on the road.

How to make a bike with a comfortable steering wheel, experts suggest. It must meet the basic requirements:

• ergonomics;
• reliability;
• strength.

The steering wheel is bent according to a pre-made sketch, while do not forget that it has important control components that control the activation of the brakes, knobs that switch speeds, a horn, a headlight. In modern bikes, you can equip an on-board computer.

The steering wheel is fixed to the stem, preferably the last component is adjustable. To assemble the steering wheel, use durable materials that will not let you down: steel, titanium or carbon.

Step-by-step instructions for making a bicycle yourself

Frame creation

How to make a bicycle with your own hands, starting from the frame, craftsmen tell. It is unlikely that you can do the work yourself, so enlist the help of a friend. For the frame, prepare 7 pipes, 2 of them should be short, 4 medium - they are placed for the rear feathers, the long ones remain for the seat component.

Follow this frame assembly sequence:

1. Attach the lower main pipe to the bottom bracket using a welding machine.
2. It should be fixed to the lower edge of the steering tube located in front of the bike. The position of the helmsman is relative to the perpendicular of the bottom bracket shell.
3. Following the parallel of the head tube to the glass, weld the seat tube to the down tube, taking into account the desired angle of inclination.
4. Then weld the seat tube and front tube to the main top tube. The front frame is complete.
5. Proceed to welding the lower stays to the glass of the carriage. The angle to the seat profile must match the angle of the main bottom.
6. Join the top end of the seatpost to the edge of the chainstay to form the chainstay.

Pressing the fork and making dropouts

The fork is pressed in in a horizontal position. How to make a bicycle yourself with your own hands at the stage of pressing the fork, step by step instructions masters provide:

1. Mount bearings.
2. Attach the cones to the balls
3. Put the washer on the shock absorber rod.
4. Tighten the locknuts firmly, but do not over-tighten so as not to break the connection.

1. Take a metal plate and cut out some pieces.
2. Armed with a jigsaw, make recesses in the details, the size of which should fit the diameter of the wheel axle and fixing nuts.
3. The part is welded to the frame, applying the side devoid of holes.

Landing recesses are placed at the same level, otherwise the wheel will not sit on the dropouts. The step between the mounting holes is equal to the tightening of the nuts to the maximum.

Mounting the remaining components

A fully functioning great bike requires the installation of working units on the skeleton. The most difficult thing is to install on your bottom bracket and debug the cranks and pedals. And again, you can’t do without a guide on how to make a bike with your own hands:

1. Secure the steering wheel mounted in the shock absorber housing with a bolt. The plug must be well lubricated before starting work.
2. Insert the seatpost vertically into the tube and secure it with a metal clamp with a nut.
3. Install the carriage into the glass using a squeeze.
4. After installing the chain, install the wheels.

Conclusion

Now you have the knowledge of how to make a bicycle with your own hands almost from scratch. The work begins with the creation of a drawing, and after that the idea of ​​​​the master is gradually being realized. Some components you can make yourself, others are better to buy, so be prepared for expenses. The made bike will become a real attraction of the area, for sure everyone will want to ride on such a device.