What are big wheels on a bike for?

Bicycles with 28 ” wheels.

A bicycle with 28-inch wheels, the so-called “hybrid”, is a kind of station wagon that can be ridden faster than a mountain bike, moving not only on asphalt roads, as on a highway. Like any station wagon, the hybrid has absorbed all the best from its “parents”. A reliable and durable car, equipped with rims with a diameter of 622 mm and tires with a width of 32 to 50 mm, such a bike runs well on a paved road, but can ride along a path in the forest and on a dirt road, has good directional stability, but it is more difficult to accelerate. than an agile and responsive 26-wheel bike. Due to the large diameter of the wheel, the hybrid overcomes bumps in the road quite quickly, but its narrow tires will skid on a sand grader.

Wheels in 27 inches.

The 27-inch wheel (622 mm diameter with a narrow, smooth rim) is a classic road bike wheel. It was this wheel size that was the standard for the Tour de France some time ago. The purpose of a road bike is clear from its name. This is a high-speed car, demanding on the road surface, without any shock absorption, in demand by fans of the wind in the face and hard workouts. Tire width. from 19 (maybe narrower) to 28 mm.

Bicycles with wheels 20-24 inches.

About bikes with wheels from 20 to 24 inches, in short: these are either specialized bicycles for freeride or BMX, or city, or children or teenagers. Often they have a folding frame, are equipped with a foot brake, a footrest, a high handlebar and other attributes of a bicycle for walking, comfortable riding; can have a multi-speed transmission, disc brakes, and some unique specimens are equipped with a rear shock absorber.

Bicycles with 26 ” wheels.

Manufacturers of bicycle computers in the installation instructions enclose a table with the numerical values ​​of the wheel circumference, depending on the diameter of the rim and the width of the tire. The higher the number after the sprocket, the wider the tire, the higher the tread, the more passable the bike will be, although it will lose some speed due to these two factors.

Bicycles with 29 inch wheels.

When the two-wheeled car makers decided to combine the cross-country ability of a mountain bike and the roll-off of a hybrid, the so-called 29er, or 29-inch wheel, was born. What kind of a miracle device is this? He’s very cunning, niner. Fitted with wide rims with a diameter of 622 millimeters, or 28 inches, the 29er acquired thick, tall tires, which immediately increased its cross-country ability. Naturally, the geometry of the frame has also changed, there are more clearance for the wheels, of course, the width of tires for such a bike starts from 2 inches.

Niners have a wonderful quality. they “don’t see” obstacles. Their remarkably large wheels “lick” the bumps in the road, giving the rider comfort and confidence. High directional stability of bicycles of this type, good grip when entering a turn, rolling and the ability to “cut down” on an uneven track at high speed attract riders of various levels. Niners are especially good for tall riders who can feel uncomfortable even on oversized traditional bikes with 26-inch wheels. It is worth noting that niners are less responsive, they accelerate longer than the “little 26s”, but this is more likely due to the total weight of the two-wheeled car, increased both due to the size of the wheels and the lengthening of the frame.

Why does a bicycle have such big wheels??

wheels, bike

Bicycles are different. blue, green, red. In addition to the color of the frames, they differ in hinge, geometry and, among other things, the diameter of the wheels. Eyes diverge: here is a device with small, only 20 inches in diameter, wheels. And next to it stands a bike with wheels measuring as much as 29 inches. Why this variety was created?

Wheels 27.5 inches.

In 2013, a kind of intermediate type of specialized mountain bikes with 27.5-inch wheels appeared. What is it: a marketing ploy or a fundamentally new car? The same rim with a diameter of 622 mm was put on tires, wider than the hybrid, but not up to the size of the niner. This type of bike sits in the middle between a traditional 26-inch bike and a 29er bike. It may be more suitable for shorter riders than a 29er. This type of bike is firmly established in the cycling community, and more and more riders are choosing a bike with 27.5-inch wheels. Good rolling and handling are combined with high cross-country ability, and the weight and throttle response less than that of the Niner will not leave indifferent fans of cross-country.

Each type of bike has its own characteristics. You can read about other types of two-wheeled vehicles in the following articles on our website.

What are caps for??

The cap on the nipple is an integral part of this device. The main task of the plastic caps on the Dunlop models was to protect the nipple from dirt, and they also slightly retained the air that was passed by the rubber tube. Modern models have become more functional, they are also used as a special key for unscrewing the spool. Caps manufactured by Presta protect the nipple from dirt and mechanical stress, they are not very strong, therefore, with strong pressure, they can break even from working with a bicycle pump.

In addition to their basic functions, caps are also often used as a decoration for bicycles.

Designers present a fairly wide and varied range of such devices. Caps can be roughly divided into 2 types:

  • decorative, serving mainly as a spectacular decoration of the vehicle;
  • backlit (neon), in addition to the aesthetic function, such caps make the bike visible in the dark, thereby being responsible for safety.
  • Dunlop;
  • Schrader;
  • Presta.

The Dunlop is an outdated rubber model that is practically no longer used. In the USSR, such standards were set for all bicycles. Now you can still find her on children’s bicycles or old-style bikes. It is similar in hole diameter to the automotive standard. 8 mm, and in functionality to the Presta model. The design of such a nipple is rather unreliable and, in addition, very vulnerable to dirt.

In addition, such a procedure was difficult to perform on your own, it was necessary that someone firmly held the tube in the nipple.

Schrader, or automotive nipple (also sometimes called American nipple), is considered a universal standard, because it is suitable for both car and bicycle tires. The characteristic opening diameter is 8 mm. This variety is most commonly used in tire manufacturing. Due to its rather wide distribution, almost any automobile pump is suitable for such a standard, although models without a clamp are not suitable for it. As a distinctive feature of the Schrader design, one can single out the presence of a special valve. if you press it, air is exhausted from the tire in full.

There are models in which the valve is designed so that the air is deflated almost instantly. The cap in such variants serves to protect the valve from dirt and mechanical damage, but does not seal it tightly. A nipple of this type is characterized by a rather high strength and durability.

Install tires with this design on most modern bicycles. based on this, the American nipple can be considered one of the most common parts.

The Presta, or bicycle nipple, is the most popular. It holds much better tire pressure and has a more modern design. But at the same time, it will not work to inflate such a tire with an auto pump, for this you need a special nozzle or pump for bicycle wheels. And also the valve of this type of nipple is quite fragile, it can break even when the chamber is pumped. Because of this property, many manufacturers make screw-in models. Presta spool bore diameter is 6 mm.

Such a device is mainly installed on sports and road bicycles, as well as mountain bikes. Its dimensions are slightly thinner than an automobile nipple, but it differs in a longer length. 42-80 mm. A distinctive feature of this design is the location of the valve stem, it is placed outside, not in the middle. In addition, the cap also has a nut that helps to trap air in the chamber.

Unlike the car nipple Presta is characterized by sufficient lightness, it is also installed on tubeless tires.

Air injection with this design is carried out as follows:

  • the cap is unscrewed and placed nearby so as not to lose;
  • unscrew the lock nut, but do not remove it to the end, you just need to release the rod;
  • insert the pump and attach the clamp;
  • pump air.

Compared to other varieties that are installed on relatively inexpensive or mid-range brands, Presta is used on expensive models.

What it is?

A nipple is the tube that connects the bicycle tube to the existing check valve, which holds the air, in addition, it serves to pump it. The valve is called a spool, under the pressure of the air entering from the outside, it opens and closes when the air begins to press from the middle of the wheel. The tightness of the spool closing depends on the pressure inside the wheel, and the higher it is, the more it is closed.

The main function of this device is to keep the air in the chamber hermetically. Such valves can have slightly different shapes, even for nipples of the same type, the spools may partially differ.

Nipples are predominantly made of brass, although steel models are sometimes found. It is better not to purchase such, since their quality is rather dubious.

Bicycle nipples are also referred to as the nuts that hold the spokes and wheel rims.

Bicycle nipples: features and types

Over the period of its existence, the bicycle has undergone many changes, a number of spare parts have acquired a more complex design. The only part that has retained its original look and function is the bicycle nipple.

How to choose?

Presta and Shrader are the most common spool models and they also have fairly similar performance. When choosing a device, first of all, you need to pay attention to the rim holes. if their diameter is 6 mm, then only the first standard is suitable. If it is necessary to install Shrader, it is necessary to ream the diameter up to 8 mm, but it should be borne in mind that after this the edges must be protected.

To avoid damage, be aware of the presence of the caps, even if they do not have sealing properties. When choosing a nipple, you also need to take into account that a bicycle pump must be used for Presta, and the air injection procedure must be carried out carefully, without strong pressure.

You can also use a pump with an auto-nozzle, for this you need to perform several steps:

  • unscrew the nut;
  • pull out the rubber band together with the sleeve;
  • unfold the plug downward with a narrow part;
  • place the rubber cone with the wide part downwards and fasten the nut.

So, without much effort, you can change the pump nozzle from a car pump to Presta. Shrader is suitable for wide tires, including children’s cycling tubes, while Presta is mainly suitable for sports models. It should be borne in mind that the nipples have different lengths (33-80 mm), such a variety depends on the parameters of the rims.

Nipples rarely fail, especially with normal bike maintenance, but in the event of a breakdown, they can be easily replaced.

For how to pump the Presta nipple, see the next video.

Wide wheel fat bikes

The classic version of a two-wheeled vehicle does not allow you to move quickly and comfortably on liquid mud, off-road and sand. Bicycles with wide wheels solve this problem, which can be used even in rather harsh climatic conditions. In this case, you need to know what a fat bike is. Also special is what a fat bike is for. Appropriate equipment, a reliable bike and knowledge of some of the features of the operation of equipment will ensure comfortable movement on off-road, in harsh conditions and in bad weather.

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Purpose and design features

Conventional classic bike models of any type do not allow for efficient rides in difficult conditions. Therefore, manufacturers have released a fat bike, which is characterized by wide and large wheels and practicality. Before choosing a particular model, you should know what a fat bike is, its types and characteristics, and what a fat bike is for. This approach allows you to choose the best bike option that will ensure safety and comfort on the road on any road.

How to ride a Penny Farthing by Nate

Many people wanting to learn fat bike. what it is, the practicality of this vehicle is highly appreciated. This is due to the fact that the design of the bike has a well thought out shape. Thus, the following design features of this bicycle model can be distinguished:

  • The main distinguishing part of a fat bike is the wheels and the pressure in them. They are wider than other bicycles;
  • The vehicle also has a wider rim width than mountain or e-bike models;
  • The bike has wide and thick tires, which provide high efficiency when driving on various routes;
  • There are holes on the rims that are necessary to reduce the weight of the product, because massive tires and a large width make transport difficult;
  • The fat bike can be fitted with both hydraulic and disc brakes. There is also an electric bike with wide wheels.

A bike with wide and large wheels is optimal for off-roading, riding on loose snow or liquid mud and other similar trails. This practicality of the technique is due to the carefully thought out width of the tire. At the same time, it is possible to regulate the pressure inside these parts, if necessary, increase or decrease the area of ​​adhesion to the road. That is why a bicycle with large wheels is a tool, the popularity of which is quite high.

There are no shock absorbers in the design, but their absence is compensated for by large wheels. With the help of such elements, the vehicle allows you to easily overcome various obstacles in the form of stones, bumps on the road and other areas. This cross-country ability is not different for a regular bicycle of any type. At the same time, inside the tire of each wheel, the pressure is about 0.5-1.5 atm. The usual version of the technique has tires, the pressure in which. from 2 to 3.5 atm. Thus, the efficiency of traction of large wheels with the ground and the permeability of the vehicle is increased, which provides pressure.

A bike with unusual wide wheels is also versatile. Such a vehicle can be easily transformed into both winter and summer versions. To do this, you need to purchase two pairs of wheels: one of the standard type, and the other. big. In the first case, the technique will resemble a mountain bike, and in the second, the fat bike will provide comfortable movement in difficult conditions, on snow or mud, stones or off-road. It should be borne in mind that tires and wheels must be of high quality, and the pressure in them must be optimal.

Brake system

Comfortable and reliable fatbikes are produced by only a few major manufacturers. Each company also provides all the necessary parts for this technique, for example, a motor wheel. Such a company as SURLY is especially known, but the models produced by the FATBIKES company are also practical. In any case, for each model of popular vehicles, disc brakes are most often provided. At the same time, on a fat bike with wide and large wheels, you can install a motor wheel and make an electric bike, which is very popular. This approach allows you to significantly improve the model of equipment that has been released by any company.

The assortment of popular manufacturers includes bicycles with hydraulic disc brakes, but an e-bike can also be purchased. On such a model, there is a motor wheel, and the pressure in it ensures easy movement. Before choosing an e-bike, it is worth determining a fat bike. what it is and what are motor wheels for. The terrain on which the ride is planned, the features of operation, the cost and characteristics of the electric bicycle motor wheel are taken into account. Various options for popular types of electric bicycles and any motorized wheel have the following features:

  • The well-thought-out design that distinguishes the bike ensures comfortable operation of the equipment;
  • Electric bicycles and motor wheels can have different parameters and configurations of accumulators, and if necessary, you can install disc hydraulic brakes;
  • High-quality bicycles and motor wheels, which are produced by any well-known company, can have both aluminum and steel frames;
  • The motor wheel, which has a bicycle with large tires, can be installed both in front and behind.

Various models of this technique are practical and easy to use. A reliable electric bike or regular fat bike features large wheels, good cross-country ability and easy maintenance. These advantages are due to the high popularity of both an electric bike and a simple model.

Practical fat bikes with motorized wheels are a reliable means of transportation, but the technology does not allow driving through large snowdrifts and swamps. A fat bike or an electric bike will provide a comfortable ride in those conditions in which the classic type of two-wheeled transport without a motor wheel will not travel even a short distance. At the same time, it is important to choose high-quality and durable brakes, large tires, and also monitor the technical condition of an electric bike or bike.

Advantages and disadvantages of alloy wheels for a bicycle

Very emotional and cocky. Extravagant and extraordinary. Such thoughts come to mind first of all when you see a bicycle on alloy wheels. We will not draw any conclusions yet, but consider the cast wheel from a pragmatic point of view. Let’s omit the aesthetic component for now.

Let’s face it

A huge delusion of the majority of the uninitiated was the fact that alloy wheels for a bicycle are much lighter than spoked wheels. We declare with full responsibility that this is sheer nonsense.

Just a few examples will suffice. The weight of an ordinary wheel without rubber is on average 1 100. 1 200 g, and the weight of alloy wheels, which is declared by the manufacturer itself, is 1 465 g (Grimeca wheels, 26 ”, made in Italy).

It is also a very common myth that alloy wheels are stronger than spoked wheels. Also not entirely true. In terms of strength, only carbon bicycle rims can compete with conventional wheels. But their price cannot be put next to the price of a spoked rim.

Alloy wheels cannot be repaired and are subject to destruction during mechanical overloads. one specific curb is enough for the casting to be permanently out of order. Abroad, the situation is somewhat different. no one there will even think about leveling or rolling out a cast wheel. straight to non-ferrous metal, because health is more expensive. And one more point, not entirely clear for those born in our open spaces. On the most budgetary MTVs over the hill, they try to put just casting. Why? Right. It’s cheaper. And we have him canonized and hung the corresponding price tag.

A spoked wheel perfectly holds impacts in all planes and can be easily repaired. tightening the spokes, straightening, and finally rolling out the rim. The spoke will allow you not to worry on the road that the wheel can crumble at any moment and the trip will end in disrepair.

Who needs alloy wheels?

First of all, athletes. And they are needed, like air. The fact is that in single races on a cycle track, carbon or fiberglass discs are used. They are made in a variety of ways, from hydroforming to injection molding. When used on tracks, a blade is placed on the front wheel. 2-3 ribs, and the rear wheel is made solid. On closed tracks, where there is no need to fight windage, they put solid wheels in front and behind. Casting in track racing cycling is a must. That’s why:

  • ease of construction;
  • sufficient rigidity for the track;
  • no need to install brakes;
  • reduction of the air resistance coefficient;
  • improved handling.

With the emergence of an unhealthy tendency to put molding on any bicycles, manufacturers such as HED, HSon, Lightweight offer them for free sale. On bike tracks, a cheaper version of the fight against air resistance is also used. shields that are worn over the spokes.

Everything is so bad?

Alloy wheels are rarely produced with a single rim, knowing the susceptibility to destruction. Therefore, the double rim will give strength and confidence.

The design of the blades of the cast disc allows for better aerodynamic properties. Let it be noticeable not immediately, but the fact will warm the soul when you remember the spent 120.

Structurally, it is possible to install not only disc brakes, but also V-Brake. Such an opportunity, of course, will expand the casting halo.

Separately, it is worth mentioning the wonderful bikes on cast wheels from BMW. We will not announce the for them, but you can admire.

Here is a video footage from the manufacturer, which explains how wonderful it is to ride Teny Rims alloy wheels in the USA.

Every bike rider has the right to decide whether he needs alloy wheels. That this is unusual is an indisputable fact. But whether such unusualness is good is a moot point.

Why bicycling speed?

If you only ride on paths in a park or sidewalk, you really don’t need the speed on your bike. But fans of cross-country driving, long journeys with alternating ascents, descents and flat areas, real athletes will appreciate this parameter.

Technically speaking, changing the speed on a bike changes the cadence. Cadence is the cadence and the required pressure applied to the pedals by varying the gear ratio between the wheel and the pedals. You need to switch speeds in order to more evenly distribute the energy expended on pedaling.

For example, when you are driving uphill or on uneven terrain, you need to make a lot of effort to pedal, which, for a long time, threatens arthritis. Turning on a low speed will make it easier for yourself to pedal, reduce stress on muscles and joints, but the bike will go slower. On a flat track or when descending a mountain, it is necessary to turn on a high speed, then more effort is required to pedal (compared to models without speeds or other gear), but the two-wheeled horse will become faster, more stable, it will move smoother and more stable. When driving in the city, usually include an average speed.

So, on a bicycle, speeds are needed to ensure an even tension of the chain, to balance the muscular efforts of an athlete when riding on different parts of the path.

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How many speeds does a bike have?

On modern bicycles, the number of speeds usually fluctuates between 10 and 30. In this case, there are usually two or three gears. What then is the difference between the 10 and 30 speed models? Let’s start with the fact that the number of bicycle speeds is the result of multiplying the number of front sprockets (there are two or three) by the number of rear sprockets (there are from 5 to 10), auxiliary ones, making gear shifting smoother and more comfortable.

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Accordingly, the 15-speed bike has 3 forward gears and 5 rear sprockets, while the 30-speed model has 10 rear sprockets. And the difference is in technological costs and the number of torque variations.

Why does a bike need so many speeds?!

On modern bicycles (especially mountain bicycles), you can rarely find only one speed, as on models produced 20-30 years ago. At first glance, it may seem that the new characteristic is just a trend of fashion or a publicity stunt that absolutely does not affect the quality of skiing. But why, then, are the most experienced and knowledgeable cyclists chasing high speed models and not skimping on it? Let’s figure it out.

Cycling speeds, their importance, proper use and shifting raise a lot of questions for newcomers to the saddle. whether they are youngsters or two-wheeled horse fans with twenty years of experience returning to the wheel. In this article we will answer basic questions.

How to properly switch gears on a bike?

Gear shifting is carried out using switches on the steering wheel, which throw the chain over the sprockets of the connecting rod system and the sprockets on the rear wheel hub. The front derailleur should be at medium speed during normal riding, and you must also remember to return it to this position after sections of the track covered at low or high speed. This avoids excessive tension and rapid wear on the chain.

Forward and reverse gears are switched one at a time and at the time of normal pedaling, i.e. to a difficult section of the road, ascent or descent. Changing the speed without pedaling or in the middle of a climb puts a very heavy load on the drivetrain and can cause chain breaks or derailleur breakage. Also, it is not recommended to change gears while the bike is stationary.

When choosing the position of the front and rear derailleurs, you should avoid variants with a strong chain skew, i.e., for example, maximum on both the front and rear sprockets. The best option at low speed is 4-5 reverse gear, in middle gear. 2-7 (or better. 3-6) gear, at high speed. 5-8 / 9 gear.

Cycling speeds are a very useful and useful thing for all lovers of long bike trips and cross-country riding. With them, you can easily enter any ascent, accelerate as much as possible on descents and flat tracks. Do not neglect this opportunity. buy yourself a bike with several speeds and enjoy life!

WHAT ARE THE CLASSES OF BIKES

In general, four types (classes) of bikes are considered basic: road, mountain, city and special (for example, children’s, trial, etc.). As for the rest of the mass of bicycles, these are “hybrids”. various combinations and combinations of basic types.

To unambiguously determine the class to which the bike belongs, information about the diameter of the bicycle wheel, how many shock absorbers the bike has and what type they are will help. Although, this method works in the general case, and from it, as from all the rules, there are exceptions.

CLASS FOUR. SOFTTAIL

The softtails have a front suspension fork, and the rear triangle stays have a special geometry needed for more shock absorption. It happens that these feathers are replaced with short-travel shock absorbers. This class of bikes is very expensive, usually cross-country sports bikes.

By the way, city bicycles and some others, for a comfortable ride, are sometimes equipped with shock absorbers located in the stem or, for example, in the seatpost.

The above applies to the most common types of bicycles. But the market is now filled with a wide variety of bike models from different manufacturers. Therefore, the article below contains information on the approximate classification of bicycles, with the help of which, we hope, it will be easier for you to decide on the choice of a bike.

MOUNTAIN BIKE. MOUNTAIN BIKE.MTB

The mountain bike has a 26-inch wheel diameter. Variations are possible, both with the absence of shock absorbers, and with the presence of a front shock absorber or even two shock absorbers. front and rear. They can be either without shock absorbers, or with a front shock absorber or with two shock absorbers. Has increased ground clearance.

CITYBIKE. CITY BIKE. ROAD BIKE

The city bike has a 28-inch wheel diameter. The frame can be closed (male) or open (female), mud guards cannot be removed, there are headlights, a trunk and a dynamo. Landing vertical.

FOLDING BIKE. FOLDING BIKE

Folding bike wheel diameter from 16 to 24 inches. Most often, this model is not equipped with shock absorbers, but it has a special folding frame.

Leisurely short-distance walks are the main function of a folding bike. This bike is convenient for storage and transportation. It can be equipped with one or several speeds, as an option, it is possible that it will be equipped with short-travel shock absorbers.

Types of bike transmissions

A bike drivetrain can be:

  • Straight, when the drive wheel and pedals are attached directly, without the use of a chain system. This transmission is found on penny-farthing, monocycles (with one wheel), tricycles for children.
  • Cogwheel, which uses gears with teeth.
  • Shaft, which uses shafts to transmit torque.
  • Belt. Belts are used here, which, unlike chains, do not require lubrication.
  • Hydraulic. A hydraulic system is used, not a mechanical one.
  • In the form of a planetary hub, consisting of a large number of parts and resembling a car gearbox.
  • Combined, which is a hybrid of two types of transmissions for a bicycle at once: external and internal (planetary).

What is the speed switch for??

Gears are needed by the cyclist to regulate the forces applied to pedal on different parts of the terrain: plain, uphill, downhill. If a bicycle (for example, an older model with a small and large wheel, called a penny-farthing) has a fixed gear (one and only), then one pedaling will rotate the wheel also one revolution.

Those bicycles that have a derailleur have the ability to achieve optimal cadence with an adequate amount of effort. For mountain climbing, large chainrings (gears) at the rear are used in combination with a small chainring. For flat terrain without wind, you can switch to a smaller rear gear.

Transmission components

The bike transmission consists of the following components: Cassette. This is a part of the transmission located on the wheel and attached to it with the help of a hub. It consists of one gear or two or three gears of different sizes. They are also called “stars”.

Another part of the transmission is the “system” (also called chain drive). In addition to cassettes (these are stars or gears), it includes carriages on which moving parts rotate. connecting rods and chains. The latter link all the elements into one system. The chains are designed in such a way that they transmit the force for wheel spin with an efficiency of up to 98%.

Bicycle chains can be of different widths and have a greater or lesser distance between the nodes (backs), that is, between those places around which the sections of the chain turn during its movement and which fasten the links.

The switch of speeds (gears) is rear. It performs not only the function of shifting gears, but also regulates the chain tension (maintains it during shifting). Gear change is carried out by transferring the chain from one sprocket to another.

Front derailleur. Another speed switch (but no tension control function). The front derailleur is only available on bicycles with two or more sprockets in front. The device changes several parameters: cadence, angular speed, and also the torque of the bicycle wheel.

Shifters (shifters). These are special levers with the help of which (cables are also involved) the cyclist regulates the gear shifting. They are usually mounted on the handlebars, to the right and left of it. The cables are in a kind of protective devices. in shirts. rigid tubes that are attached directly to the frame of a large.

Planetary hub

The planetary hub (internal gearshift mechanism) is mainly used on conventional bicycles that are not designed for special or unusual loads. It consists of the following details:

  • A sun gear located in the center and attached to the axle of the bicycle wheel.
  • Planetary gears or satellites revolving around the first (the parts are named so because their position resembles the planets and the sun).
  • An element called a carrier. It locks the previous elements together.
  • Epicycle or epicyclic gear. It surrounds all the satellites and the central sun gear. It is she who rotates from the torsion of the pedals by the cyclist.
  • Spline drive, holding together and transmitting torque from the wheel sprocket to the planetary hub mechanism.

Bike drivetrain

A bicycle transmission is a bicycle equipment that is a complex system designed to transfer the forces of the cyclist’s muscles to the rear wheel of the bicycle for movement.

Bike drivetrain setup

When it comes to tuning the transmission of a bike, this extremely important part of caring for a bike during its operation, it is carried out in several stages:

  • Checking the tension of the cable (for better performance, you can provide a margin and relax it a little).
  • Checking the operation of the cable and tightening the three screws (H, L, which means, respectively, “High” and “Low”, as well as the tension screw) so that the rollers located on both sides of the bicycle chain are exactly on the same mowing line with largest and smallest star.

The operation of the transmission of a bicycle is something that every cyclist should know, because the correction of emerging breakdowns, as well as the maintenance of the transmission elements and its adjustment are questions that every bicycle owner will have to face.

Why a bike is useful

The historical date of the appearance of the bicycle is considered to be 1817, when a professor from Germany, Karl von Drez, created a model of a two-wheeled scooter, and the following year he officially patented his invention. Initially, the design was called a “jogging machine” and was used to move faster. The seat and pedals appeared on it only by 1840.

In the modern world, a bicycle is not only a means of transportation, but also a hobby, active leisure, sports for people of any age and gender. Scientists have proven that periodic or regular cycling significantly improves the physical condition of the body. Here are 25 indisputable facts about the benefits of cycling:

The body movements performed by a cyclist are most effective in combating subcutaneous fat on the abdomen and thighs. Those wishing to lose weight do not need to run in the morning until exhaustion. it is enough to take a bike ride for several kilometers. Depending on the intensity of movement, the body burns 400-1000 calories per hour of driving, the metabolism increases. Remember that in the complex of exercises for weight loss there is such an exercise. “Bicycle”, which is also performed to strengthen the press.

Build muscle mass

When a person pedals, the gluteus maximus and minor muscles, thigh muscles, and calf muscles are actively working. At the same time, the rate of fat burning increases in them, which are replaced by muscle mass. This is especially true for people in the rehabilitation period when restoring damaged hip flexor muscles.

Reduces the risk of cancer and cardiovascular diseases

During a bike ride, no harmful substances are released into the atmosphere, people breathe clean air (which has a positive effect on the body as a whole). Scientists have observed a group of 260,000 people with a tendency to develop these diseases for five years. Passion for cycling has reduced the recurrence of diseases by 50%.

Improves the quality of sex life

Pedaling activates and strengthens the muscles in the groin in men that are responsible for erections. Research in New Zealand has shown that after intense cycling, libido is increased. And 50-year-old men who ride an “iron horse” for at least three hours a week are less likely to develop impotence.

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Increases brain activity

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The physical condition of a person is closely related to the cognitive functions of the brain (this includes intelligence, coordination of movements, memory, speech). Even regular exercise on a stationary bike improves brain activity by 30%. As a result, a person is less prone to depression, stress, apathy and turns from a pessimist to an optimist.

Healthy knee joints

During cycling, the cyclist’s body weight is supported by the pelvic bones, there is no weight load on the legs and knees. When running (walking), on the contrary, the knee joints receive a greater load.

The circle of communication is expanding, new friends appear

Cycling is interesting to do in a group of like-minded people. You can arrange competitions, races, bike rides. At the same time, new connections, acquaintances appear, your circle of contacts expands, your social status rises. Active sports events and rest after them usually take place in nature, in beautiful picturesque places.

Intestinal function is normalized

Leg movements while riding this type of vehicle improve the speed of passage of food debris through the large intestine, improve digestion. It should be borne in mind that during physical activity, the movement of blood is directed to the working muscles, and not to the stomach. Cyclists need to drink more water and eat healthy food to avoid getting stuck in dead weight.

Helps maintain a healthy ecological environment

As a means of transport, a bicycle is environmentally friendly. It has no exhaust gas emissions that poison the atmosphere. But if we compare it with walking, then with the same energy consumption for a pedestrian and a cyclist for the same time, the latter will move a distance three times greater.

Fight against obesity and cancer

Among the people who regularly ride bicycles, there is not a single person who is obese. The scourge of modern society is overweight, it causes a decrease in life expectancy by an average of 10 years and can cause 13 types of cancer. Cycling helps maintain weight and halves the risk of cancer in people at risk.

You can eat foods prohibited in diets

Salt is a must for cyclists! It contains sodium, which is responsible for the proper functioning of nerve cells, contraction of muscle fibers, maintenance of acid-base and water-electrolyte balances of the body. Therefore, if you are passionate about cycling, you can eat salty (but not oversalted) food, drink chocolate cocktails, and snack on sandwiches. In this case, carbohydrates are an essential nutrient.

Controlling blood sugar and bad cholesterol

Bicycle riding is useful for people who are sick or susceptible to diabetes. During the bike ride, the level of glucose in the blood decreases, as it serves as source of energy. Even moderate physical activity reduces the amount of “bad” cholesterol in the blood, which is very beneficial for vascular health.

Improving the psychological state

According to research by scientists, physical activity improves the functioning of brain cells. The health of people who go in for sports is three times better than those who lead a sedentary lifestyle. When a person is depressed or depressed, only 15 minutes of cycling is enough to improve mood and reduce the level of the stress hormone cortisol.

American scientists have proven the dependence of heart health on the intensity of pedaling. The higher the speed, the better for the heart. Even one bike ride per week of just 20 minutes reduces the risk of heart disruption in half.

During cycling, the lungs work at full strength, their ventilation improves. When you exhale, more toxic substances are released, and the alveoli are cleared. When you inhale, oxygen is supplied, which is necessary for the muscles to work. It is important to breathe only through the nose, as this warms up and filters the air before entering the lungs, improves gas exchange.

Better sleep quality

Cycling is a great cure for insomnia. It is enough to pedal two and a half hours a week and you will fall asleep faster and sleep better. Every morning you will wake up refreshed, full of energy for new things and in a good mood.

Improving coordination, posture

Cycling improves the coordination of movements, the posture of a person, because during the trip you have to constantly monitor and maintain balance. For correct posture, it is important to choose the right vehicle, focusing on the height and weight of the cyclist. People with back pain can also cycle in a special device called a ligerad.

Strengthening and enhancing immunity

It is enough to practice on a stationary bike every day for 20 minutes to increase your immunity and exclude ARVI diseases during mass epidemics. Physical activity “turns on” the body’s immune defenses. At the same time, it is important not to overdo it, since small and medium loads help to overcome the ailment, and intense heavy ones can suppress immunity in an unprepared person.

Makes it possible to look several years younger

Regular sports activities increase blood circulation, increase collagen production, which leads to rejuvenation of the skin, hair, and renewal of all body cells. Scientists have discovered a link between cycling and rejuvenation at the cellular level. The body and brain in older cyclists function the same as in younger cyclists.

Increased life expectancy

Cycling has been shown to help maintain mental clarity and joint flexibility into old age. Cycling an hour a week is enough to reduce biological age by nine years.

Facilitate pregnancy and childbirth

Women cyclists are much easier to tolerate pregnancy, give birth and recover faster. American gynecologists confirm that pregnant women who prefer to ride a bike are in better physical shape, sleep better and give birth easier.

Saving money

Cyclists do not spend money on fuel, insurance, repairs and expensive vehicle maintenance. You do not need a license to drive a two-wheeled “horse”. In addition, you can additionally save on buying a gym membership and instead of grueling workouts, go cycling.

Improving quick wits

Cycling develops a person’s creative thinking. The flow of oxygen to the cerebral cortex increases vitality and creativity. Therefore, during outdoor activities, you often want to sing, dance, write poetry, invent.

The repetitive movements of the feet while cycling involve all the tissues and muscles of the legs. The joint fluid lubricates the knee and ankle joints well, while the release of lactic acid does not occur. Therefore, American doctors recommend cycling to effectively treat arthritis.

What is a fat bike?

Fat bike, what is it? A new round in the evolution of a mountain bike, or just someone decided to reinvent the bicycle again? Let’s figure out what kind of fat bike it is, as well as to whom and why it is suitable.

Fatbike is the Russian spelling of the English word fatbike, which consists of two parts fat (fat). fat and bike (bike). bicycle, i.e. literally the name of such an off-road bike is a fat bike. Looking at a fat bike or just fat, it immediately becomes clear that we are talking about its wheels, which are much thicker than the wheels of mountain bikes.

What is the main thing in a fat bike?

But fat wheels are not the main feature of fat bikes. The main thing is the low pressure in the tires, which they can have without the danger of puncture or wheel breakdown, thanks to their hefty tires, which sometimes reach 5.5 inches and wide rims from 65 to 100 mm. All this allows you to keep the pressure in the chambers of the fet in the range of 0.5 atm. up to 2 atm.

The main advantage of the “fat man” or, as stated above, the snowbike is also the main disadvantage. Gravity is a merciless force, and such large wheels will gravitate towards the ground with twice (if not triple) the force of a mountain bike wheel. After all, one feta wheel weighs about 3 kg! But there are also loopholes here. You can drill a lot of holes in the rim, which is what many manufacturers do.

Partially compensates for the weight by not requiring a shock suspension for the fet. The front fork is installed on them with a shock absorber, but there is no special need for this, because the stroke is so soft without it that even an expensive double suspension, with a high-quality suspension, will be a stool in comparison with a sofa-like feta.

For many bikers, this is even more important than the all-terrain fat bike. The difference is especially noticeable on gravel roads, and other small irregularities in the road, which make the mountain bike tremble and the one who sits on it with a small tremor.

Another advantage of the fat bike is its unusual appearance. Although they did not appear yesterday, there are still very few of them and you will definitely not be deprived of attention, both from pedestrians and drivers.

What is a fat bike for??

So what is a fat bike? This is an SUV among bicycles. A bike for those who love uncompromising skiing all year round. Thanks to its thick wheels, fatbike has a high cross-country ability not only over the cross-country. the element of mountain bikes. He easily rides on dry sand, arable land, snow and complete off-road. Hence the other name for a fat bike. snowbike, i.e. “Snow bike”.

Where a mountain bike, even on specialized mud tires, makes the biker feel not very confident, and can even force him to temporarily become a pedestrian, fatbike feels like a fish in water.

Is it difficult to ride?

At first glance, it seems that riding a fetbike is extremely difficult. This is not true. Modern fetas are stable and reliable. Despite the large wheels, the ride of a fat bike is almost the same as a conventional bike, and thanks to the same transmission, it is easy to find the right gear ratio for a comfortable ride, both in the city and on difficult terrain. Riding a fatbike will only become much harder at speeds above 25-30 km / h. If you need faster, a fetbike will not work.

But even then there was a way out. an electro fat bike. This is the same bike, only with a motor inside the wheel or in the bottom bracket assembly, and a battery on the frame or bike rack. Of course, it is more optimal when the battery is located at the place of the bottle. And it looks more ergonomic and the center of gravity is lower. And it is convenient to take off and charge. Instead of shoveling the whole bike, like models with a built-in battery in the frame, which, by the way, are more expensive.

Yes, a fat man with a motor will be heavier, but you will only notice this when you pick it up or when the battery runs out. By the way, the pedals of the electrophete will remain, and you can go with a discharged battery simply by twisting them.

The advantages of an electric fat bike are high speed. The battery charge (depending on the capacity and intensity of the ride, of course) is enough for a trip up to 100 km. Do not forget about the ability to use the power of the motor as a pedaling aid, which, by the way, greatly saves the battery. Or you can, having rolled on your own, let the electric motor take you home, tired of pedaling.