8 kinds of bicycles: the pros and cons, features

The main selection criterion

Pick up a vehicle for growth. By keeping the bicycle look between the legs of the fact that the frame of perineuma remained at a distance of 5-10 cm. This distance promotes the safe use of two-wheeled vehicles.

An important parameter - seat height adjustment. If a rider sits on the bike, it must reach your feet to the ground.

Manned vehicles equipped with shock absorbers. However, the excess part of the mechanism of high-speed bike. The cushioning elements may be used or eliminated in the following cases:

• Bike called "regid" It is not equipped with a shock absorber, but different maximum values ​​of sustainability.
• The design "dvuhpodves" dampens vibrations rear, front wheel. Mechanics of the two-wheel means is complicated, and stability decreases. It is recommended to use the shock absorbers with a small stroke.
• Padded design "Hardtail" where the plug is engaged. The mechanism facilitates easy driving on rough roads.
• Design titled "Softtail" dampens vibration, shock. "Two-wheeled machines" with such a device expensive.

Two-wheeled bikes for adults

Bicycling for adults for a large age group. The choice depends on the rider's preferences and growth. Sometimes the role and weight of the person.

If the cyclist weighs 90 kg, he will approach vehicles with a reinforced frame. A sufficient number of rates for an adult - from 6 to 8. Mechanisms with the number of switches for more than eight are often broken.

The latter type, called more "urban" is relatively cheap. Naznachenie- daily trips around the city.

touring bike It combines the comfort and convenience of road, but features a powerful running performance. With it is possible to move the load (Traveler things).

Mountain bike suitable for riding with downhill skiing, cross-country, jumping over obstacles. Hybrid - combines the characteristics of the mining and tourism, and is suitable for urban walking and for exploring the highlands.

Children's bicycles

Doctors assure that the physical development of children is more intense when they ride bicycles. Even a two-year toddler is able to master such transport. The main thing is to choose the model that matches your age.

Children's bicycles divided into four categories:

1. and a half to three years;
2. from four to six years;
3. seven to nine years;
4. from ten to thirteen years.

Models from 1 to 3 are equipped with the same and for girls and boys. One difference - the decor and color. In some bikes provided footrest and handle for parents.

It is recommended to take into account the diameter of the wheels in accordance with age.

• Wheel size 30.48 cm (12 inches) is placed on the tricycles model for children 2 up to 5 years. Children growth within such ranges: 85 - 110 cm.
• Wheel size 40.64 cm (16 inches) is mounted on a device for kids from 4 to 6 years. Children growth is 100 - 120 cm.
• Wheel of 50.8 cm (20 inches) is suitable to the means for driving, designed for children from 6 to 9 years with the growth of 115 - 135 cm.
• Wheel 60.96 cm (24 inches) - a part of vehicles produced for children from 8 to 12 years with increasing from 125 to 150 cm.

It is advisable to consider a model with a seat that is height adjustable. The child grew up? You can adjust the seat height and continue skating.

From the age of thirteen child bicycle suitable for adults only, it should be taken into account Rostovka (rider meets the growing height of the frame). If a teenager has saddled the frame and it is worth their feet on the ground, the recommended distance from the frame to his crotch - 5 cm. This will ensure your child a comfortable ride and protects against injury.

Bicycles for girls

How to please the little princess with the purchase of a vehicle? It should be based on convenience and design solutions model. Design and specifications are no differences in the children's bicycles, so the determining factor when choosing - appearance.

Safe driving, both on the ground and on the asphalt provides a good bike. It is better to buy a model for girls lightweight. Minimize the weight of the structure to help non-severe frame and in the fall the child does not receive serious injuries.

Tehkolesnye models are equipped with a backpack or a basket of bright color on the wheel. Do not interfere with removable harnesses wheels if your child is just learning to ride. After development of such vehicles 'insurance' is removed.

When buying caring parents pay attention to the following factors:

• comfort seat;
• capacious basket for baby things or rear-view mirror;
• unsteady handle grips;
• adjustable steering wheel.

Women are more difficult to choose a bike, than girls. To use male models them uncomfortable.

Bras backdrop saddle has a wide and short nose and the male - backdrop narrow and long nozzle. If you choose the wrong lady bike, there are problems in the body and increase the likelihood of falls and injuries.

Lightweight bikes

Models with low weight make it possible to gain maximum speed. Therefore, this category includes track bicycle intended for racing. They are created with an inclination angle.

Gearshift mechanism offline as brakes. But the system is available for a fixed transmission. Straps on the pedals installed "tuklipsy" locking leg during the race.

Of all the varieties of bicycle track - the easiest. They are similar to racing models, but have structural differences. Track mode of transport is characterized by a short wheelbase, increased frame rigidity, which has a small size, affecting the agility and lightness.

By the light patterns are female models, their frame is made of light alloys. Some devices are equipped with a beveled top tube for easy rolling girl's skirt. Women's bike design elegant, bright.

Interesting fact!

In 2010, in Las Vegas presented the lightest two-wheeled transport «Spin Light» weighing 2.7 kg. Material of construction easy and strong carbon fiber. The low weight is dispersed bicycle for a few seconds before the limiting speeds.

Bicycle Power

electric bike It is a vehicle with electric drive, which allows to totally or partially eliminate the use of pedals. The first model of this device appeared in the late XIX century. transport development went in parallel with the development of electrical engineering.

The popularity of the vehicle due to the fact that there are compact high-power batteries, digital motor controllers.

Elements of the electric bicycle:

• accumulator battery;
• Charger;
• motor;
• controls;
• controller.

Installation of the electric two-wheeled vehicle to increase its capacity. Now it is used by the wider community. Electric transport is becoming more presentable, more powerful and easier. The advantage of using such a "machine running" - when riding on it a driving license is not required.

Models available in the shops - small folding electric bicycles with wheels 16 - 20 inches, easily transported in the trunk of a car. Sold conventional electric model with a wheel size of 24 - 28 inches. The battery is embedded in the frame or the trunk.

Tricycles - tricycles large electric bicycles used in the countryside. Equipped units front and rear baskets, sometimes equipped with a second seat. Its frame is sheathed with plastic material, the battery box is located in front of the driver seat. there are low cost options tricycles electricity.

Folding bicycles

Folding bicycle is popular due to its versatility. model design makes it easier to transport and store. The advantage of "speed other" - folding frame.

Despite this, he looks like an ordinary bicycle with an open frame. Models are available with a special frame design that folds in half is not, as the majority, and in several places. Foldable models weigh of 7 kg, the diameter of the wheels 6 inches. For storing bicycles do not need a lot of space.

In the collapsible mode of transport two indisputable advantages - practicality and mobility. For some models even create a special bag for storage. However, there is only one drawback - the folding bike is slightly inferior to the technical characteristics of their dimensional counterparts.

Mountain bikes

The most common and popular type of bike. Appointment bicycle - riding along the road of poor quality, over rough terrain. When available, regular walking and mountain models. This bike for freeride, downhill, freestyle, backcountry, Dirt, cross-country.

Categories bicycle different specifications. For cross-country main requirement - low weight. In daunhille - depreciation quality, mechanical strength.

Mauntibayk or mountain bicycle (MTB) for off-road riding, and therefore has a special design, which differs from urban, highway, track bicycle

Transport Description:

• rear suspension;
• Hardened frame trapezoidal shape;
• absorbing fork very soft;
• the carriage is raised level with bushings for enhancing ride height;
• sturdy wheels;
• reinforced tire treads with relief.

Often the wheel submitted for 5 - 12 cm with respect to the steering rack.

Mass professional bicycle level holds within 8 - 12 kg. Budget models weigh 15 - 17 kg.

In recent years, the standard wheel sizes - is 27.5 and 29 inches instead of the previous 26.

Bikes with disc brakes

A huge demand for vehicles with disc brakes. On wheel hub design engineers set of thin metal discs.

The operating principle of disc brake is similar to the principle of the rim brake. Only one difference - clamped disk, not the rim. On the left-hand wheel mounted on the hub steel disc away from the spokes. By rotating the disc on the right and left pads are pressed. The stronger they are pressed, the greater the braking force.

Bicycle disc brakes There are three varieties:

1. mechanical;
2. hybrid;
3. hydraulic.

The cylinder activates the brake pads, combined with high-sleeved. The system is filled with oil and sealed. The design is not equipped with an expansion tank, so the substitution of oil and repairs carried out by special instruments.

Mechanical brakes are equipped with rope, which tightens the drive lever. The mechanism presses the disc brake pads. They, together with a rope produce movement in perpendicular planes.

Hybrid brake - a combination of hydraulics and mechanics. A cable with a lever acts on a hydraulic system located in the housing and consisting of a pair of cylinders (power and control).

Advantages of disc brakes:

1. on long downhill heated rotor rather than the rim;
2. Blocks are erased slowly, the life of the disc brakes more than the rim;
3. Wheel rim is not abraded by prolonged braking;
4. High modulation (soft braking);
5. brakes work perfectly in different weather;
6. strain does not affect the disk brake.

Disadvantages can also be found. Modern manufacturers produce vehicles with disc brakes, very different from each other. Because of this, replace faulty connector or another part of the system is problematic.

Bicycle disc brakes - this is definitely a movement forward progress. Disc brake system adorns and enhances the performance of transport.