A bicycle is a vehicle that allows you to simultaneously get to the desired point, take care of your physical form and turn every trip into a walk. It does not need to stand in a traffic jam or crowd in a filled subway car, returning home from work. It is environmentally friendly. But at the same time, he also has a drawback: not everyone can overcome long distances. Still, the physical form may not allow you to drive several kilometers without stopping. But a solution to a problem can always be found. In this case, you can make a motorbike with your own hands.
Features
Motorcycles can be purchased at the store. But they are quite expensive, and the appearance is far from desirable. Yes, and this design weighs about 20 kg. This weight will greatly complicate the road if the engine fails and you have to pedal. Such shortcomings can be avoided if you make a motorbike with your ownhands.
This type of transport was widely popular among teenagers during the Soviet Union. But modern capabilities and tools allow you to significantly change an ordinary bicycle and create an original vehicle. Experienced do-it-yourselfers, when asked how to make a motorbike with their own hands, will answer that it is very simple. Almost everyone can cope with such an activity.
Types of engines
Getting started, you need to decide which is better to choose a motor for a bicycle. They are of two types:
Electric, which are becoming more popular with the advent of compact but capacious batteries
Internal combustion engines, which are the traditional option
To create homemade motorbikes, gasoline engines can be used from lawn mowers, chainsaws and other tools and units.
Engine selection
Most often, an old chainsaw is taken as the basis for making a motorbike with their own hands. Or rather, its engine. But here, too, there are some limitations. Do not take engines from small and light saws. They have too little power. Suitable for a bicycle motor, the power of which is above 2 liters. with. (or 1.5 kW). And the higher this value, the better. But even with the specified value, the bike will be able to accelerate to 30-35 km / h.
When choosing an engine, you should also pay attention to the volume. In accordance with the ViennaBy convention, this value should not exceed 50 "cubes". Only in this case, the rights and registration of the vehicle will not be needed. The motorbike will then fall into the "outboard motorbikes" category.
Another advantage of this engine is the absence of the smell of gasoline. The motor practically “does not smell”, which allows you to store the bike at home. But there is also a drawback. It consists in the characteristic sound of a working chainsaw. The sound of a running engine will accompany you throughout the trip.
Connection of individual parts to the frame
To create a motorbike, you can use any bike: old, rusty, folding. A motorbike requires only a solid frame from the base. If one is not available, you can make it yourself. This will require several pieces of metal pipe.
The motor is attached to the frame at the junction of the lower and seat tube. This is the most optimal, but not the only option. Sometimes you can see the motor mounted on the trunk. The main thing is that the fastening is reliable. During operation, vibration will be felt, due to which the motor may fall if it is loosely fixed. For fastening, it is recommended to use metal clamps. A kit for a motorbike may include special perforated mounts. But their use is not required at all.
In addition to the engine, the battery and fuel tank must be fixed to the frame.
Connectiondetails
Fixing all the parts individually to the bike frame is only half the job. Next, you need to combine all the elements into one system. Otherwise, a homemade motorbike will lose all its new features.
First of all, you need to connect the motor so that it transmits rotation to the wheels. For this, a special mechanism must be provided. There are two options for these mechanisms: with pulleys or chains.
Belt transmission provides for a pulley system. This is an easier option. One pulley is put on the motor shaft. The second is fixed on the rear wheel hub. Between them is put on a tension belt. The disadvantage of this option is the shorter life of the belt (which stretches faster) compared to the chain. It should be noted that V-belts are not inferior to chains in terms of their characteristics (service life).
In the case of a chain drive, the rotation from the engine to the wheel comes through the chain. On the one hand, it is put on the rear wheel sprocket. On the other - on the gear, put on the motor shaft. Chain drive is more durable than belt drive. But she needs regular maintenance.
The battery is connected to the engine ignition and the brake lever. Next, you can install the exhaust pipe. You can do without it, but the exhaust fumes will overshadow the trip.
Electric motor installation
The use of a gasoline engine when creating a motorbike with your own hands "kills in the bud" the idea of environmentally safevehicle. Therefore, models with electric motors are becoming more and more common. The development of modern technologies allows you to do this.
The principle of installing an electric motor is similar to mounting gasoline engines. This will require, in fact, the motor itself, the battery, parts for control, the controller.
Motor wheel
Another option that can be chosen when creating a motorbike with your own hands is to install a motor-wheel. This option is suitable for those who understand electrics. Connecting the motor-wheel requires certain knowledge, without which it will be difficult to assemble an electrical circuit.
Motor-wheel sales kit includes controllers, front and rear brake handles, Pass system, charger.
The battery generates direct current. The controller converts the direct current into alternating current, which, in turn, will drive the wheel motor. When the wheels start spinning, the electric motor is activated. For this, the system "Pass" notes. The brake levers have a microswitch. It is necessary in order to turn off the power supply from the motor to the wheels during braking.
Installation of the wheel motor is carried out in accordance with the following steps:
The bike turns upside down. The rear wheel is removed. In its place will be a motor-wheel. It is attached in such a way that the outgoing wires are on the left (when viewed fromdirection of the bike). This controls the direction of rotation of the wheel. If the sides are reversed, then the wheel will "go" in the opposite direction
The controller and battery are attached to the frame. The controller must be well insulated
The rest of the parts are installed and connected
When assembling an electronic circuit, it is important to remember that the battery is connected through a fuse (20 A is enough). It will protect the system from fire in the event of a short circuit.
Conclusion
As you can see, there are several ways to make a motorbike with your own hands. Each of them has its own advantages and disadvantages. Installing the motor on the bike does not interfere with riding in the usual way (pedaling). To do this, just turn off the motor and clutch of the motorbike. This is very convenient when you want to take a leisurely ride and get in shape. The option of a bike equipped with an engine (regardless of its type) is a good option for people who choose an active lifestyle. It is both a vacation and a way to get around the city (and not only).
