How to disassemble the pedal assembly of a bicycle

Drivetrain and bicycle brakes

The drivetrain is something a bike won’t run without. A fairly complex unit, it includes most of the mechanisms:

  • carriage;
  • leading stars;
  • connecting rods and pedals;
  • chain;
  • rear stars;
  • speed switches and coins.

Using a Crank Puller. Bike

The carriage assembly is located in the lower frame glass and serves as a connecting unit for the connecting rod pair and chainrings. The carriage provides free rotation without turning due to the fixed bearings and the through axis on them. It is divided into two types: with open bearings and cartridge, where the entire mechanism is hidden inside the case.

Connecting rods. parts for connecting the carriage to the pedals. They can have two mounting options: slotted and square. Two-piece, or twin, connecting rods come with a chainring (stars on high-speed models) attached to the right connecting rod.

Pedals are leg supports through which forces are transmitted to the cranks, carriage and chainrings. Depending on the scope of application, several types are distinguished:

  • classic, or platforms. put on entry-level bicycles, you can use any shoes, engaging on the pedals due to friction forces;
  • contact. with special inserts, designed only for cycling shoes, improved grip of surfaces;
  • extreme. for a sports bike, wide surface, thickness, fixing inserts;
  • pedals with straps;
  • pedals-mini.

The speed bike rear transmission chainrings attach to the rear wheel hub. There are 2-3 rear sprockets per one chainring. Small stars are responsible for high gears, and large stars are responsible for low gears.

The connecting link between the front and rear sprockets is a chain: the Gall block model is used on the bike. The chain transfer is carried out using switches, which are controlled by shifters on the handlebars. Shifters are divided into two types. drum and lever. Driving cables connect them to the switches.

There are no derailleurs on the singlespeed, the front and rear sprocket in a single copy, the chain is shorter.

Brakes are the most important system, without which it is strictly forbidden to roll out the bike. Modern brake systems for bicycles of various classes:

  • rim. pliers, V-brake;
  • disk;
  • drum-sleeve.

Rim brakes are clamping devices with pads that act on the rims of the wheels, slowing down their rotation. Plier models have one fastening, due to the movement of the lever, the staples come closer together, and when they are loosened, they move back. Pliers are placed in place of the wing attachment. Used as additional brakes on singlespeeds and road bikes.

V-brake works on the same principle, but the calipers are in a fixed state: to the fork for the front brake, to the stays for the rear brake. V-brakes have more precision and braking force than crimped.

The disc brake consists of a disc (brake surface) fixed to the hub, a caliper and a drive. a lever and a cable. The brake pads are attached to the calipers, which are pressed against the disc when the handle is pressed. The disc accuracy is higher than that of the V-brake due to the larger braking surface, less pad travel and independence from the rim geometry. By the type of drive, disc brakes are divided into mechanical and hydraulic.

Drum-hub brakes are outdated, but they continue to be actively installed on road models. The drum is hidden in the rear hub and is brought into contact with the pads by depressing the pedals backward. To prevent the sleeve from spinning, a special locking mechanism is built in. Braking efficiency is low in comparison with rim and disc counterparts, but for single-speed road workers there is no better option.

What is the bike resting on

The structure of a bicycle is similar to that of a car: there is a supporting structure on which all working units are attached. For a passenger car, this is a body, and for a bicycle, a frame. The type of frame largely determines the purpose, and its quality is responsible for the life of the bike.

The bicycle frame is represented by a diamond-shaped frame, welded from the elements:

  • main front tubes. top and bottom (closed), curved front tube (open);
  • seat tube;
  • top feathers;
  • chainstays.

The front tubes are sewn together into the head tube, the down tube and seatstays from the seatpost into the bottom bracket, and the feathers between themselves into the rear wheel dropouts. Front tubes and stays are welded to the top of the seat tube on both sides.

In relation to the seat tube, the front and rear are represented by two unequal triangles, the dimensions and geometry of which depend on the type and purpose of the bike. For the modern assortment, there are a large number of frame options, but they are all divided into classes:

  • urban. tough, durable and heavy;
  • mountain. resistant to loads, mobile, durable;
  • road. light;
  • sports. resistant to high loads, durable, shock-resistant;
  • stunt. used for BMX bikes.

Bicycles are divided into full-size and foldable. The first ones do not have a folding mechanism, and they must be disassembled for transportation in the metro, public transport and the trunk of a car. Folding ones have at least one joint along which the frame is folded. They are more convenient in transportation and storage, but inferior to full-size ones in terms of running performance.

The material of the supporting frame has a great influence on the operation of the bicycle. Modern bicycles are available on steel, aluminum and carbon frames.

Steel is used on city bikes. The material has high strength and shock resistance, and its disadvantages are heaviness and low flexibility, which is why the frame does not smooth out shocks well. All this does not have the best effect on the dynamics of the bike.

Aluminum is lightweight, durable and flexible. Compared to steel counterparts, frames made of it have better maneuverability and passive damping. Lightness and strength improve dynamics and do not create significant resistance to movement. Of course, their cost will be higher.

The most expensive frames are carbon fiber-based frames. This material is used on high-end road, mountain and sport bikes. Among the advantages compared to metal competitors are durability, strength, shock resistance and lightness. Plus, carbon-based bikes have better maneuverability compared to aluminum.

Required set of tools and materials

Before you figure out how to remove the pedals from the bike, you need to collect all the available tools that will be needed during these work.

Interesting! These tools should always be at hand by the cyclist so that he can make repairs on his own. It is worth buying them at the stage of choosing a bicycle for a man or a woman.

List of materials that you may need:

In addition to the above things, for removing the pedals are useful:

A special stand that fixes the vehicle in the air will help to facilitate the process of removing the bike pedals. However, some cyclists argue that this way they have to put in more physical effort.

What the wheels are made of

Bicycle wheels are strong and lightweight structures that provide movement and, through rotation, keep the frame in an upright position. Traditionally, the bike has a rear wheel drive, that is, the rear wheel is pushing, and the front wheel is driven and is responsible for control.

The illustration shows what a classic bicycle wheel is made of. The device is simple and has hardly changed since its inception.

Bushing. central part, consists of axle, bearings and washers. The main purpose is to set and hold the torque. Transmission sprockets are attached to the rear bushings. The internal structure is more complicated than that of the front ones, since the hub is involved directly in the spinning of the wheel. On the road models, in addition, a braking mechanism is integrated into the rear hubs. Planetary rear hubs have hidden gearshift mechanism.

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The rim is a circular ring that attaches to the hub through the spokes. The geometry of the rim, combined with the spoke tension, determines the wheel’s resistance to damage and dynamic stress. Bicycle wheel rims are made of aluminum, the spokes are made of light alloys with chrome plating. Traditionally, spoke tension knobs are located at the rims, but there are inverts that are adjusted on the hub.

Tires consist of a tube and a tire. The chamber is a hollow rubber product that is pumped with air to the required pressure. It is connected to the outside world by a nipple, through which air is pumped into the inside of the tire. It’s also a good idea to find out what cycling nipples are and how they differ. A rubber flipper is placed over the inside of the rim to protect the chamber from the spokes.

The tire is the outer part of the tire and consists of beads, sidewalls and the contact part. the tread. Depending on the purpose of the bike, different types of tires are installed:

  • slicks, semi-slick. for road bikes, for smooth roads;
  • road. tires with a medium tread pattern;
  • aggressive. tires with a pronounced pattern, for mountain bikes;
  • hybrid: can be used both on flat surfaces and off-road (but inferior in cross-country ability to aggressive ones).

The visibility of the wheel in the dark in the rays of light is given by a reflector. an orange insert on the spokes. Due to traffic safety requirements, the wheels of all bicycles are equipped with reflectors.

Pedal device

Before removing the pedals, first you need to familiarize yourself with the structure of this unit. These steps must be performed before any such repair operations. The pedal consists of several elements, and each model can have a different design, namely:

disassemble, pedal, assembly, bicycle

Depending on the platform, the pedals are divided into two groups: contact, in which it is assumed that there is a special mount for cycling shoes, and standard models.

Removal of simple devices does not require much effort, and contact mechanisms with more complex latches are not easy to dismantle.

Control system and depreciation

The main element of the bicycle device is the steering unit. It includes several components:

  • fork;
  • steering column;
  • takeaway;
  • steering part.

The bike fork serves as a connecting point for the handlebar and front wheel. Installed in the front glass of the frame with a rod. The handlebar is inserted directly into the fork, and the wheel is attached to the ears of the legs. dropouts.

In order for the fork to rotate freely when turning, a steering column is installed inside the glass. It consists of upper and lower cups, bearings and locating rings. Cups can be pressed or screwed onto the internal thread of the glass (on expensive professional models). Bearings are divided into closed industrial and bulk ball bearings. The rings are put on the fork rod, which is fixed in the steering column.

The handlebar of a bicycle consists of a horizontal curved tube and a vertical rod. The rudders are divided into:

  • straight (for MTB and hybrids);
  • curved upward (road);
  • curved downward;
  • rams (for road bikes).

The vertical stem of the steering wheel has a wedge at the end, which fixes the pipe in the fork when the nut is tightened.

The stem is a part that determines the distance of the rudder from the frame and is attached to the adjusting tube. Rigid and adjustable stems are installed on different models. Simple road-type bicycles are not equipped with a stem. The distance of the steering wheel affects the fit: the further it is, the more the cyclist takes a horizontal position.

The saddle is secured to the center tube of the frame by a seat post. The height adjustment will allow you to find the optimal fit. Saddle widths differ depending on the type of bike: on road models they are wider than on MTB and road models. Saddles can vary in shape and length. They are spring-loaded from below or equipped with dampers.

Damping is the ability to damp vibrations and cushion shock loads. Traditionally, the suspension system is located in the front fork, and these bikes are called hardtails.

The damping consists of a spring and a damper. Depending on the components used, forks are divided into several types (spring / damper):

  • spring (without damper);
  • spring-elastomeric;
  • spring oil;
  • air-oil.

Adjustment of fork parameters: stroke length (Preload), rebound speed (Rebound) and lock. Forks without shock absorption are called rigid and are used on road and road models.

In addition to standard cushioning, mountain bikes are fitted with a rear shock absorber that dampens frame vibrations. Bicycles with two shocks are called bikes.

Bicycle pedal assembly

Guys, welcome! In this article, we’ll talk about pedals. I want to say right away that there is a pedal on the left side and on the right side, and they differ in the direction of the thread.

It is easy enough to identify them: you sit on the bike and know that there will be a left pedal under your left foot, and a right pedal under your right foot. Due to the fact that they have a different thread direction. they spin in different ways, and twist in different ways.

Example: The right pedal is unscrewed counterclockwise and the left pedal is unscrewed clockwise. The right pedal is twisted clockwise, the left pedal is twisted counterclockwise. It is important to remember!

When you twist the pedals, thereby installing them in the connecting rods, you need to lubricate the thread itself with grease, otherwise there may be a problem when unscrewing this pedal in the future. If this happens, I advise you to use the WD 40, it should help.!

But there are times when the pedal does not want to unscrew, then you have to use an angle grinder. In this case, the cranks will become unusable, but you can reach the pedal. You can use other methods that come to your mind, the main thing is not to despair, but also not to allow stupidity.

How a bicycle pedal works

To start repair work, first you should familiarize yourself with the device of the product. It is important to understand that they are all different and are part of the whole system. The following parts of the pedal are distinguished:

There are two types of bicycle pedals: regular and contact pedals. The first case is more common and easier to deal with. In the second case, there are mounts for cycling shoes. These pedals are harder to remove, this will require certain knowledge and skills.

The need for dismantling can arise for a number of reasons: replacement of the connecting rod or its repair, replacement of the pedal as a result of its damage, lubrication of mechanisms. The process will not take long if you have all the necessary tools and materials at hand.

Required set of tools and materials

Before you figure out how to remove the pedals from the bike, you need to collect all the available tools that will be needed during these work.

Interesting! These tools should always be at hand by the cyclist so that he can make repairs on his own. It is worth buying them at the stage of choosing a bicycle for a man or a woman.

List of materials that you may need:

  • A small adjustable wrench that allows you to unscrew the nuts even in hard-to-reach places.
  • Universal open-end 15th wrench, it fits most models.
  • Dedicated pedal wrench to unscrew custom nuts. Manufacturers attach it to kits, but you can find such a tool in the standard set.
  • If your bike has clip-on pedals with attachments, a puller may come in handy. This tool is used to hold the axle in a fixed position while turning the key.
  • There are special bike kits that are used as a last resort.

In addition to the above things, for removing the pedals are useful:

  • lubricating fluid. all dismantled parts must be cleaned and lubricated to improve performance and extend service life (you can use the same agent as for processing the chain);
  • rags. used to cleanse all elements;
  • thinner. used for large dirty areas or problems with loosening elements. Its analogue is kerosene.

A special stand that fixes the vehicle in the air will help to facilitate the process of removing the bike pedals. However, some cyclists argue that this way they have to put in more physical effort.

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Step-by-step instructions on how to remove a pedal from a bike without a puller

After finishing the preparatory work, we proceed to dismantling:

  • First of all, slide the system towards the steering wheel, this position is considered to be working.
  • Gently unscrew the pedals from the crank with an adjustable wrench. Which way to unscrew the pedals on the bike? Right. counterclockwise, left. in the direction.
  • Remove the end cap to expose the locknut. Use a small flat head screwdriver for this action.
  • Smoothly unscrew the nut, holding the axle with the second key.
  • Also, a washer remains at the end, which must be removed.
  • At this point, unscrew the cone.
  • It remains to remove the platform from the axle, try to control the position of the bearings in order to exclude their sudden fall.

How to Take Apart and Repair Pedals on a Bicycle (Part 1)

Difficulties during dismantling arise due to external factors or under heavy loads. There are two options for solving these problems:

  • treat the elements with kerosene or solvent. After soaking in such liquids, dirt that hinders rotation can be easily removed;
  • you can heat the axle and connecting rod, there will be a slight deformation of the metal, and the axle can be easily removed along the thread.

In general, the process of removing the pedals is quite simple, it is much more important to prepare the necessary tools and materials, as well as follow the instructions. It is recommended to return the parts to their place first by hand, and only at the end to tighten with special wrenches.

How to remove the pedal from the bike and replace the connecting rod

The pedal is a simple part, but the long life can cause some disassembly problems. Therefore, many experts recommend systematic maintenance of the vehicle, despite the fact that many do not attach importance to this issue.

Let us analyze in which cases it is necessary to remove the pedals:

  • the part is damaged and requires replacement;
  • lubricate the elements;
  • replacement or repair of the connecting rod;
  • you need to understand the features of the system and understand how it works.

Before removing the pedal from the bike, the following tools should be prepared:

  • open-end wrench 15;
  • adjustable wrench;
  • if there is a non-standard solution of the manufacturer in the fastening elements, then usually the set contains a key for removing the pedal.

How to properly remove the pedal from the bike

When repairing a bicycle pedal, it is important to remember one detail: each of them has a different thread, therefore, they are unscrewed in different directions. The left pedal is clockwise and the right pedal is counterclockwise as usual. Such a precaution is necessary so that the pedals do not unscrew themselves from the connecting rods during the movement.

To dismantle the bicycle pedals:

  • turn the pedals in the direction of the steering wheel, bringing them to the working position;
  • unscrew it from the connecting rod with a small adjustable wrench;
  • remove the plug hiding the lock nut from the end of the platform;
  • clamp the axle at the connecting rod with the second key and remove the lock nut;
  • there is also a washer that needs to be unscrewed;
  • remove the cone, disassemble the platform, holding the bearings.

To prevent the bearings from scattering, it is better to substitute a container, cardboard, sheet of paper under the pedal, or remove the axle above the table, otherwise the bearings may get lost. The number of balls in both pedals must be the same. It is advisable not to mix them with each other, so that during assembly, parts from the left pedal do not fall into the right and vice versa. During the operation, the parts have worn down, and this should not be violated.

Carefully remove old grease with a cloth and WD-40. If problems arise during dismantling and the pedal does not give in, first clean it of accumulated dirt that prevents rotation. To do this, soak the pedal in kerosene, gasoline or solvent, then wipe it dry. Heating of the connecting rod axle also helps. The metal deforms, loosening the threads, allowing the axle rod to be removed.

After replacing damaged products, lubrication, it is necessary to install the pedals. The main thing to remember about the different threads: the right one is twisted clockwise, the left one. counterclockwise. Regular maintenance is essential to ensure that your pedals last as long as possible. over, the more actively the bike is used, the more often and more thoroughly it should be taken care of.

BIKE PEDAL DRIVE CARTRIDGE, containing a housing, bearings, each of which is located in the housing between the bush and the cone on the carriage assembly shaft. made in one piece with the connecting rods, and a device for adjusting the clearance in the bearing. made in the form of bushings, characterized in that, in order to reduce the metal consumption and simplify the manufacturing technology, a hole is made on the shaft of the carriage assembly, and the gap adjustment device is placed between the said bearings and is equipped with an adjusting screw on which tapered washers are installed to interact with the tapered surfaces of the bushings. and recesses are made on the inner surfaces of the bushings and cones, while the adjusting screw is located in the shaft hole. (L tSD O 00

ON CASES OF INVENTIONS AND DISCOVERIES (21) 3485607 / 27-11 (22) 25.08.82 (46) 15.05.84. Bul. 8 (72) S. I. Shimansky (71) Central Design and Technology Bureau of Bicycle Building (53) 629.118.35 (088.8) (56) 1. USSR author’s certificate 62727, class. B 62 M 3/00, 1970. (54) (57) BIKE PEDAL DRIVE CARTRIDGE, containing a housing, bearings, each of which is located in the housing between the cup and the cone on the carriage assembly shaft, „„SU„„1092084 A made in one piece with the connecting rods, and a device for adjusting the clearance in the bearings, made in the form of bushings, characterized in that, in order to reduce the metal consumption and simplify the manufacturing technology, a hole is made on the shaft of the carriage assembly, and the clearance adjustment device is placed between the said bearings and is equipped with an adjusting screw on which conical washers are installed to interact with the tapered surfaces of the bushings, and recesses are made on the inner surfaces of the bushings and cones, while the adjusting screw is located in the shaft hole.

The invention relates to bicycle construction, in particular to carriage assemblies of a pedal drive with a solid crank.

Known carriage assembly of pedal drive of a bicycle, containing a housing, bearings, each of which is located in the housing between the cup and the cone on the shaft of the carriage assembly, made in one piece with the connecting rods, and a device for adjusting the clearance in the bearings, made in the form of bushings (1).

The disadvantages of this design of the carriage assembly are the large metal content of the bone, the complexity and laboriousness of manufacturing a shaft of complex configuration and cones.

The aim of the invention is to reduce the metal consumption. To simplify the manufacturing technology.

The goal is achieved in that the carriage assembly of the pedal drive of a bicycle, containing a housing, a bearing, each of which is located in the housing between the cup and the cone on the shaft of the carriage assembly, made in one piece with the connecting rods, and a device for adjusting the clearance in the bearings, made in the form of bushings, a hole is made on the shaft of the carriage assembly, and the clearance adjustment device is placed between the said bearings and is equipped with an adjusting screw, on which conical washers are installed to interact with the conical surfaces of the bushings, and recesses are made on the inner surfaces of the bushings and cones, while the adjusting screw is located in the shaft hole.

FIG. 1 schematically shows a carriage assembly, section; on the. fig. 2 €” incision

The carriage assembly is fixed to the frame 1 by means of a clamp 2 and a bolted connection 3 and contains a housing 4 with holes 5 and a protrusion 6. In the housing 4 there are cups 7, ball bearings 8, which are in contact with the cones 9 mounted on the shaft 10 of a one-piece crank

Bushings 12 have projections 13 on one side for connection with cones 9, and on the other.” bevels for interaction with washers 14 and 15. Adjusting screw 16 passes through washers 14 and 15 and hole 17 of shaft 10 and is fixed with a lock nut 18.

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The inner surface of the bushings 12 is tapered.

On the open side of the housing 4, a spring washer 19 and a washer 20 are mounted in the groove. When the housing is positioned 4 s

15 eccentricity in the clamp 2 provides a split intermediate sleeve 21 with grooves 22, stops 23 and protrusions 24.

The assembly of the crank 11 is carried out as follows.

On the shaft 10 of the crank 11, a case 4 is put on, in which the cups 7 are installed in a certain sequence, the ball bearings 8 of the cone 9, the bushings 12.

A screw is inserted through the holes 5 of the housing 4

16 with a washer 14 into the hole 17 of the shaft 10, and from p5 of the opposite side of the housing 4, through the holes 5, a washer 15 is inserted with the skewers and a threaded hole into which the screw 16 is screwed. what do you provide

The stop for the left cup is closed 7. After that, the clearances between the ball bearings 8 and the surfaces of the cups 7 and cones 9 are adjusted. After this adjustment, the lock nut 18 fixes the washer 15.

35 The use of the invention allows to simplify the manufacturing technology of the unit, as well as to reduce the metal consumption. 1092084

Editor C; Timokhina Tehred I. Veres Proofreader A. Ferenc

VNIIPI of the USSR State Committee for Inventions and Inventions

113035, Moscow, J” 35, Raushskaya nab., 4/5

Branch of PPP Patent, Uzhgorod, st. Project, 4

What the wheels are made of

Bicycle wheels are strong and lightweight structures that provide movement and, through rotation, keep the frame in an upright position. Traditionally, the bike has a rear wheel drive, that is, the rear wheel is pushing, and the front wheel is driven and is responsible for control.

The illustration shows what a classic bicycle wheel is made of. The device is simple and has hardly changed since its inception.

Bushing. central part, consists of axle, bearings and washers. The main purpose is to set and hold the torque. Transmission sprockets are attached to the rear bushings. The internal structure is more complicated than that of the front ones, since the hub is involved directly in the spinning of the wheel. On the road models, in addition, a braking mechanism is integrated into the rear hubs. Planetary rear hubs have hidden gearshift mechanism.

The rim is a circular ring that attaches to the hub through the spokes. The geometry of the rim, combined with the spoke tension, determines the wheel’s resistance to damage and dynamic stress. Bicycle wheel rims are made of aluminum, the spokes are made of light alloys with chrome plating. Traditionally, spoke tension knobs are located at the rims, but there are inverts that are adjusted on the hub.

Tires consist of a tube and a tire. The chamber is a hollow rubber product that is pumped with air to the required pressure. It is connected to the outside world by a nipple, through which air is pumped into the inside of the tire. It’s also a good idea to find out what cycling nipples are and how they differ. A rubber flipper is placed over the inside of the rim to protect the chamber from the spokes.

The tire is the outer part of the tire and consists of beads, sidewalls and the contact part. the tread. Depending on the purpose of the bike, different types of tires are installed:

  • slicks, semi-slick. for road bikes, for smooth roads;
  • road. tires with a medium tread pattern;
  • aggressive. tires with a pronounced pattern, for mountain bikes;
  • hybrid: can be used both on flat surfaces and off-road (but inferior in cross-country ability to aggressive ones).

The visibility of the wheel in the dark in the rays of light is given by a reflector. an orange insert on the spokes. Due to traffic safety requirements, the wheels of all bicycles are equipped with reflectors.

Useful to pay attention

Stealth bike

The manufacturer attracts with serious equipment and carbon frames (StelsNavigator 890DCarbon). An amazing aspect is the attractive price-performance ratio.

Pedal design

This part is a system element that consists of a set of stars, a pair of connecting rods, a carriage, an axle, bearings, a support platform and fittings. To better understand how to remove pedals from a bike, let’s look at each part separately.

  • The axle is a metal pin built into the connecting rod. Acts as a base on which the rest of the structure is held.
  • A connecting rod is a part that on one side is connected to the axle, and on the other. to a freely rotating platform.
  • Bearing Assembly. Design for Smooth System Ride.
  • Platform. a node that acts as a support for the foot during movement and is connected to the axle by means of a connecting rod.
  • Hardware. metal fasteners for fixing all the components of the pedal unit. Completely dismantled during disassembly.

According to the nature of the support platform, there are standard and contact pedals for a bicycle with a mount. The former provide traction with the cyclist’s sole due to the textured surface. The latter contain notches that connect to the corresponding protrusions on special shoes.

The method of dismantling largely depends on the type of platform. Contact mechanisms are more complex. Therefore, it is somewhat more difficult to remove them compared to standard products.

There is also a combination pedal option. The latter contain on one side of the platform a regular site, and on the other. a contact.

Bicycle pedal assembly repair

Bicycle pedal assembly. a set of a pair of pedals, cranks, sprockets, carriage and mounting hardware. The location in the bike structure is the bottom of the frame. The operational function is to set the bicycle in motion. Materials for manufacturing. metal, plastic, rubber.

Bicycle pedal assembly. a set of a pair of pedals, cranks, sprockets, carriage and mounting hardware. The location in the bike structure is the bottom of the frame. The operational function is to set the bicycle in motion. Materials for manufacturing. metal, plastic, rubber.

Components of the pedal:

Common malfunctions of the pedal assembly include:

  • scrolling the pedals while driving;
  • the occurrence of knocks and dull clicks when pedaling;
  • jamming, sticking of the pedal when rotating;
  • mechanical axle breakage;
  • deformation, bending of the connecting rod.

If defects of this kind are found, it is necessary to carry out preventive repair of the pedal assembly of the bicycle or replace individual worn out elements.

Technical features of the repair

In the case when it is required, for example, to repair the pedal sleeve of a bicycle, it is necessary to disassemble the assembly. Depending on the type of bike, this process uses different methods.

For some models, disassembly is carried out from the side of the connecting rod. First, the body is removed from the axle, while the fastening bolt is unscrewed. This is a simplified method provided by Shimano brand products. In this version, the ball bearings are not removed, but remain on the axis in a cylindrical bushing.

Other types of pedals can be disassembled from the end. After the flare nut, the locknut is unscrewed, and the pedal itself is removed from the axis, small rolling balls pour out of the inner cups of the pedal. It is very important to avoid losing these parts.

Pedals with industrial bearings Time and Crankbrothers are rarely serviced; if necessary, replace the worn out cartridge. But torsion springs on cylindrical contact mechanisms need regular cleaning and lubrication.

If you have any problems with the pedal assembly or want to perform its maintenance, debugging, please contact us. In our workshop, experienced specialists will diagnose the unit, repair the bicycle pedal bush, lubricate or clean the springs, replace the broken connecting rod, and perform any other necessary operations. Call us at 7 (495) 123-22-23 or 7 (812) 309-87-07 in St. Petersburg, or leave a request directly on the website.

How To Remove Bike Pedals From a Bike Quickly & Easily. No Pedal Wrench Needed!