bicycle parts and functions


Many modern bikes use STIs, which sounds questionable, but actually stands for Shimano Total Integration.

Its usually the thickest part of the frame. The Seat Stays and Chain Stays pass on either side of the wheel. Each cup houses a set of bearings that allow your handlebars to turn smoothly. Turn the pedals, the wheels go round and hey presto. Bicycle hubs are found at the centre of either wheel (front and back) and contain the bearings that allow your wheels to rotate freely. The front wheel attaches to this, which can include suspension or be rigid depending on the classification of your bike (road, mountain bike, hybrid). However they don't work so well in wet conditions. Bar-end plugs or handlebar plugs are small plugs that slot into the end of your handlebars. Mountain bike shifters come in different types twin-lever being the most common. The bottom bracket is the bottom of the frame and is where parts of the drivetrain are connected. Spokes bear the weight of the rider and bike, so they must be installed and tensioned properly. Once the stem cap is tightened correctly, the stem can be adjusted and tightened. machines bike inclined plane science english need A bicycle chain sits on the chainrings and the cassette of the rear wheel. If your bike doesnt have gears, it's unlikely to have a jockey wheel unless its being used as a chain tensioner on a single speed bike. It works in conjunction with the jockey wheel. The headset provides the smooth connecting interface (bearings) between the head tube and front fork (fork steerer tube) that allows the fork to rotate and you to steer the bike. Each seat stay ends at a "rear drop out". A cassette is an essential component of the bicycle drivetrain and is made up of a group of sprockets (cogs) located on the freehub of the rear wheel. Save my name, email, and website in this browser for the next time I comment. Bicycle rims come in many shapes and sizes and nowadays tend to be made from aluminium. There are two main types of hub axles, quick release axles and through axles. The hub is in the centre of the bike wheel. Cones are found on adjustable hubs and work alongside lock nuts.

The rear derailleur will only be present if your bike has gears! Of course, this figure will change depending on riding conditions and how often you carry out bike maintenance. The seat tube runs from beneath the saddle down to the pedals. This extends to the rear of the bike from the bottom bracket.

On a single speed bike theres only one chain ring. On a geared bike there will be up to 3. Rim brakes caliper brakes (common on road bikes), v-brakes (common on cheaper or older mountain bikes) and cantilever brakes (a classic brake, still used on some cyclocross bikes). Bike parts and their functions in English. Bikes are normally sold with a stock wheelset (two wheels), but many cyclists choose to upgrade theirs as stock wheels tend to be low quality. You push down on them to move forward! The seat post is inserted into the seat tube and is moved up and down to adjust the height of the saddle.

Cones play a part in tightening or loosening the hubs bearings. This is my unofficial name for all the bike parts that are at the front of the bike! At a very basic level, a bicycle is two wheels with a frame, pedals and handlebars. Material selection importance should Spoke nipples pass through the wheel rim and are tightened onto the end of the spoke. Shed Alarm: The 3 Most Reliable Security Systems, Shed Security: 18 tips to secure your garden storage, Best Bike Shed: Dry, Practical and Secure, Best Bike Insurance (Do we even need it?). Road bikes use thinner tires that have minimal tread, providing decreased rolling resistance. Following is a list of common parts of a bike in English with ESL pictures and example sentences you should learn to expand your vocabulary. consider the helmet as a key safety issue.

Some more modern bikes use fully integrated handlebars which combine the handlebars and stem into one single component. Some bikes dont have gears, so dont have derailleurs and only have one speed (single speed). Ready to become a bicycle component expert? Whos trying to steal your bike (and what tools are they using)? As a point of contact, you sit on your saddle whilst riding. Interview with Daniel Idzkowski from SkunkLock, 2021 thebestbikelock.com | Privacy Policy | Disclosure Policy | Contact me. The handlebars of your bike are attached to the stem, which holds them in place. A frameset is the frame combined with the fork. Because the stem is directly attached to the steerer tube, when the handlebars are turned, the front fork rotates with them, changing the direction of travel whilst cycling! How to Measure Bike Tire & Wheel Circumference, Parts of A Bike Diagram | Learn About Bicycle Anatomy, Huldit Bike Lock Holder Review | The Best Universal Bike Lock Mount. Bike top caps sit on the top of the fork steerer tube and are tightened (before tightening the stem) until there is no play or movement in the headset. STIs work just like normal brake levers but also have the ability to change gears compared to separate brake and gear mechanisms. design factors are weight, cost, and safety. Essentially its the bit that sticks out forwards from the top of the head tube. Where the spokes meet the rim, there are nuts called nipples which are used to adjust the tension.

The Components is the bicycle industrys name for the When shifting to the smaller sprockets on a cassette, the bicycle chain has more slack. two) and cycle (meaning turning). The headset is a set of components that sit inside the head tube and connect the frame and the wheel fork. Rim brakes and disc brakes are both engaged by squeezing a brake lever, whereas hub brakes are operated with your feet. The tire is mounted onto the wheel rim and provides the interface between the bike and the road surface. Axles also attach your wheel to the dropouts of your bike. Since spokes and spoke nipples need to have the same thread, spokes are normally supplied with matching threaded nipples. It consists of the chainrings (which the chain goes round), and the crank arms (which the pedals attach to). Two of the most common are the Integrated System and threaded headsets. Twist (grip shift) and electronically controlled shifters are other types. Historically, there were many different valve types, but Schrader and Presta valves are the two main options nowadays. schwinn stingray bicycle These belt drives can be found on urban bikes you will notice that they dont have derailleurs. The spokes connect the rim to the hub. Read this in-depth guide to bicycle anatomy, and youll develop a great level of understanding of what each bicycle component is and the function each part of your bike provides. bars. The bottom bracket slots into the bottom bracket shell at the base of the frame. Running alongside the chain, which gives it its name, it forms part of the rear triangle. But there are many other styles too. Wheels give the Brake levers are the parts of the bike that you squeeze to slow down! The rear derailleur works the same way as the front derailleur in that it uses cables connected to the gear lever to move the chain up and down through the cogs whilst youre moving. Schrader valves are also used on cars and motorbikes. This is my unofficial name for all the bike parts that are at the back of the bike! A major consideration is the tube frame design. Most online listings for new bikes have all the parts (including the all-important brand and type/model) conveniently listed. Bicycle chain stays connect the rear dropouts to the bottom bracket shell and run on either side of the rear wheel, similarly to the seat stays. Overtightening, bicycle spokes can damage the rim, hubs and spoke nipples of your wheel. The final part of the frame, which extends from the seat tube to meet the chain stay at the point where the rear wheel connects to the frame. There are two commonly used types of valve: Schrader and Presta. fundamental purpose to the bicycle; that is why we call it a bi (meaning When it comes to controlling your bike, the grips or bar tape you use is fairly important. Bikes that use disc brakes do not require a braking surface and instead use disc rotors that serve the same purpose. The most common style of frame is the diamond frame which is made up of 6 tubes fashioned into two connected triangles A diamond frame: the most common bike frame design. Bike pedals come in many different types. But these days they're mostly made from aluminium alloy. And each rear drop out is connected to one side of the axle of the rear wheel. Seat posts, seat pillars, seat pins, saddle posts, and saddle pillars are different names for the post that extends from the bike seat tube and attaches to the underside of the saddle. This area of the bike is comparable to a cockpit, with all of the navigation and speed control elements found here. The rear derailleur on a bicycle contains two similar jockey wheels, but either jockey wheel plays a different role. The crankset is attached to the frame by the bottom bracket, to the rear wheel by the chain and to you, the rider by the pedals! endurance). A chain is the component of a bike that transfers the rotation of the crankset (from pedalling) to the rear wheel of your bike. Valves on a bike wheel are the air inlets that allow you to inflate your tires. This connects the fork and the rest of the frame along with being the connecting point for the headset.

Litelok Core Preview: Lightweight Diamond Rated Security? The downtube is part of a bicycle frame that runs between and connects the bottom bracket to the head tube.

These come in several forms including double, triple, compact or single. The seatpost can be quite long (depending on the cycling discipline) to give you the option of raising or lowering the saddle. is made up of a hub, spokes, a rim, tire, and tube. Seatposts are adjustable in height, allowing cyclists to optimise their bikes geometry to their desired riding position. The pedals are the spinning interface between your feet and the bike. Suspension forks are typically used by mountain bikes and allow you to navigate harsh terrain whilst dampening and reducing the impact felt when tackling obstacles on the trail. Add a header to begin generating the table of contents. A seat tube with a slack angle will provide a more stable and comfortable ride. incite trek As always the major overall bicycle requirements are speed, safety, Rear brake cables usually run along the top tube or are integrated within it on some bikes. Some saddles are wider, with increased padding for extra comfort, while others focus on speed, minimizing padding and width to keep weight to a minimum and avoiding thigh chafing. These are the thin metal rods which make up the centre of the wheel, providing strength and structure to it. There are several different types of headsets available. The head tube is the short tube at the front of the frame, which connects the handlebars to the wheel fork. For us to fulfill these requirements we must select specific The down tube is the long tube that runs from the head tube (just below the handlebars), down to the pedals. For example, if you need to explain to a mechanic what is wrong with the bike, or if you need to describe the bike to the authorities should it, or parts from it, ever be stolen. If youve ridden a bike before, then the chances are, youll know what a bike wheel is! Air is added to, or expelled from the inner tube by a valve which sticks out through a hole in the wheel rim. The upper jockey wheel, commonly called the guide pulley, is in charge of shifting gears and guides the chain across the sprockets on the cassette.The lower jockey wheel or tension pulley controls and maintains chain tension when shifting gears. But do you know each part of a bike wheel? materials. These attach to the handlebars and are often built into the brake levers, especially with modern road bikes. They all have saddle rails on the underside, which are used to connect the saddle to the seat post via a saddle clamp. Modern bicycle cassettes normally use between 8 to 11 sprockets, whilst other cassettes are available with 5 to 13 sprockets.

A bicycle stem is one of the most important parts of a bike. When squeezing the brake lever, the liquid is put under pressure and causes the calliper to pinch down on the disc rotor. These refer to disc brakes, the rotor being the actual disc that is hydraulically (or mechanically cable operated) stopped when the levers are pulled on disc brakes. The centre of the wheel, this contains bearings that allow the wheel to turn smoothly. Normally you can expect a standard bicycle chain to last 3,200-4000km (2,000-2,500 miles) before needing to be replaced. A seat tube with a steep angle improves pedalling efficiency and aerodynamics, but reduces steering control and decreases stability. Nowadays, you only tend to find rim brakes and disc brakes. The steerer tube is part of the bike fork that runs through the head tube and attaches to the stem. However, some seat stays provide their own brake mounting points, these are commonly found on bikes that use cantilever or V brakes. Cheaper bikes tend to use mechanical brakes, where a wire runs to the brake system and is pulled taught to engage the brake. It contains the headset which allows us to steer the front wheel via the handlebars! Platform pedals are the most common type of bike pedal and are suited for recreational and non-competitive cycling. focus is the parts function, wear, weight, and cost. These are attached to the brakes and are pushed against the surface of the wheel rims (or disc rotor) when the levers are pulled, causing the bike to stop. Bar tape is much the same, it offers increased grip, cushioning and control of your handlebars. Cranks arms, chainrings and a bottom bracket make up the crankset. I've tried to keep all the information short and sweet, as this is more of a beginners guide to bike anatomy than some exhaustive technical encyclopaedia. When pedalling, the chain moves in motion with both of these components rotating the back wheel. However, it's really useful to at least know the names of the parts of your bike, as it helps when you're describing problems and youll know what I'm on about when I'm explaining the best ways to lock a bike etc! To inflate a Schrader tire, the spring-loaded pin in the centre of the valve must be depressed. Tires are made from rubber impregnated cloth with a thicker rubber outer layer for tread. and chain. Some examples of the Hydraulic brakes use a brake hose filled with fluid. The chain wraps around the chainset and the gears at the rear and is turned by your pedalling, propelling the bike forward. The bike chain is the part that transfers the power of your legs to the rear wheel. Many cyclists have suffered fatal accidents where open-ended handlebars pierced through their abdomens, damaging vital organs.

Mountain bikes use wide, heavily treaded tires that provide vibration dampening and increased traction. The seat stays are two thinner tubes that run from underneath the saddle, down to the rear wheel hub. The hub shell is the exterior part that the spokes attach to. Down tubes often feature mounting points for water bottle cages and other accessories. A bicycle head tube is the foremost part of a bike frame. Front derailleurs are attached to your bikes frame with a bracket or clamp and are operated using your gear shifters. Brake levers are found on the handlebars. Once the lock nut is tightened, it will hold the cone in place. Flat handlebars are used on mountain bikes, hybrids and urban bikes. Spacers these often allow you to raise the height of the handlebars slightly.

Would love your thoughts, please comment. These are attached to the chainset and are the arms to which the pedals are attached. There are broadly two types of pedal: flat/platform pedals which you simply rest your feet on top of, and clip-in pedals that you use with special shoes that have cleats in the soles to attach them to the pedal more securely. When the brake lever is squeezed, the cable is pulled tight and causes the brake calliper to pinch the wheel rim or disc rotor, slowing the bike down or preventing it from moving. However, carbon fiber and titanium are used on high end bikes. If youve read through this guide you should now understand a little more about the components of a bicycle and the role that each part plays. Spoke nipples are threaded through the rim, and screw onto the spokes, holding the wheel together. This runs along the top of the frame. Save my name, email, and website in this browser for the next time I comment. In the simplest form, pedals can either be flat or clip-in (the shoe is attached to the pedal when engaged). Headset caps (also called top caps and stem caps) are a bicycle component thats used to preload (exerts pressure) the headset. Single, double and triple are the three formats that cranksets come in; these formats relate to the number of chainrings the crankset employs.

If you ever hear grinding on the bike whilst moving, this could be the cause. When you buy through links on my site, I may earn an affiliate commission. Its a very good idea when you buy a new or second-hand bike to keep a record of exactly what parts (and the make and model of each part) are on the bike and any unique characteristics (such as a two-inch scratch on the down tube do take photos). Plugs are installed to prevent injury in case of a fall or crash. The outer shell of the hub, often made from aluminium that houses the internal components and provides fixing points for spokes. Notify me of followup comments via e-mail. Grips also help to dampen vibrations, increasing your steering control. It is kept in place by tightening a seat post clamp that sits around the very top of the seat tube, so that it squeezes the seat tube against the seat post. Open-end handlebars are sharp and can easily puncture the skin. Sometimes they're combined with a gear shifter to become a brake shifter also known as a brifter. A seatpost is inserted into the top of the seat tube, allowing you to sit down on your bike. Each wheel is made up of several other bike parts though. But slack seat tube angles also reduce aerodynamics and make pedalling less efficient.

This is the method of removing the wheels of most modern bicycles and includes loosening a lever which allows the wheel to be removed without the use of tools. The front derailleur is the part of the bike that moves the chain from one chainring to the other as you shift gears. Bike pedals are the part of a bike that connects the rider to the drivetrain. 7 things to do BEFORE your bikes stolen! And some bikes have very steeply angled or no top tubes to make it easier to get on and off the bike. Seat stays are part of a bicycle frame that runs diagonally down from the top of the seat tube to the rear dropouts. We also could They are metal rings that can be added to the top of the head tube under the stem several of them can be stacked to raise your bars for a more comfortable riding position. is defined by what the bicycle is used for; these are the requirements of the The front derailleur is a key part of bicycle anatomy. Brake cables play a vital role in controlling your bikes speed and play a key role in mechanical braking systems. The angle of a seat tube greatly affects the overall geometry and riding position that different bikes provide. The seat post is inserted into the top of the seat tube. Angle Grinder Proof Bike Lock: Has it finally arrived? The chain stays are two thinner tubes which run parallel to the ground, from either side of the pedals to either side of the rear wheel. Because tubular tires are glued to the rims, they arent limited by the rim's sidewalls.

two) and cycle (meaning turning). Lets go! Usually it runs parallel to the ground, but it may be slightly angled. Understanding the parts of a bike is something that every cyclist will benefit from. It loops around the chainrings in the crankset, along the length of the chain stay and around the sprockets of the cassette in the rear wheel. Your email address will not be published. Rigid forks are commonly found on road bikes and provide increased speed on flat surfaces. However, bicycle chains need to be regularly cleaned and lubricated to maintain reliability and efficiency. (adsbygoogle = window.adsbygoogle || []).push({}); These will keep your hands comfortable whilst cycling and make sure you maintain control of your bike. Below youll find information on all of the parts of a bicycle wheel. There are lots of different shapes and sizes of bike saddle. Hello! Tubeless tires can be fitted to most clincher wheels but may require a special rim strip to keep the tire airtight. lay with strength and weight (i.e. These rails are connected to the top of the seatpost and can be made from a wide range of materials. These two blades join together above the front wheel at the fork crown, which sits just below the steerer tube. Grips tend to be made from textured rubber, which allows you to keep hold of your handlebars without having to squeeze too tight. More details. Most of the time, this bridge provides mounting points for brake callipers, fenders or pannier racks. However, there can also be internal gears in the rear hub (usually three gears), which gives the appearance of a single speed bike (so no derailleur). Bike headsets are made up of two cups. Sometimes though, there is a need to go much deeper into the detail. This is a feature on road bikes that allows the handlebars to be situated further forwards than the top of the head tube these can be obtained in several measurements depending on your size.

A top cap is another key part of the headset, this is used to preload the headset before fixing the stem in place. When adjusting a seatpost, its important to pay attention to minimum insertion markings on the seat post tube. They work better in wet conditions and are more robust than rim brakes. The cassette is a stack of different sized sprockets (or cogs) that is attached to the hub of the rear wheel. A bicycle saddle also called a bike seat, is one of the key components of your bike. A bicycle wheel They run alongside the bike chain, which is why theyre called chain stays! In the past, hub brakes were common on city and commuter bikes. The chainrings are the front gears of the bike. Now I want to share the information Ive learnt, for free, with the online cycling community. The frame is the rigid heart of a bike. Rims used to be made from steel, but since the 1980s theyre usually made from aluminium alloy. bicycle as a complete functional unit. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); As anAmazon Associate I earn from qualifying purchases. Best Bike Stand for 2021 (and which ones to avoid). Two blades run from the bottom of the steerer tube, down either side of the wheel. Mountain bikes fall into two main categories, hardtail or full suspension. The cassette cogs are the rear gears of the bike. Unrealistic Expectations.

The crankset is the part of a bicycle that transfers the rotation of your legs, to your rear wheel through the chain. Pedals are attached to the crank arms, which allows the rider to turn the chainset. Schrader valves are the same valves you find on car tires and motorcycles. If you ever find yourself worrying about the security of your bike, youll want to increase its security. Top 200+ Best Words to Describe Yourself! And the bearings sit between the axle and the shell, allowing the shell to spin freely around the axle. While Presta valves are only used on bicycles! Traditionally bike frames were made from steel. So it will only be present on bikes with more than one front gear (more than one chainring). This means they dont need to use a complex valve, reducing their overall weight. Brake cables emerge from the brake levers and pass down the frame to the actual brakes on the wheels. The frame is the core to the

design. Where you sit on the bike. A bikes crankset, also called a chainset, comprises three integral parts of a bikes drivetrain. Wheels give the The seat stays run down either side of the rear wheel and are joined just above the wheel by a bridge or brace, increasing the frames rigidity. Cycling 100 Miles a Week: Making it Happen, What Can Undo Eating Right, Losing Weight, Riding Enough? Some older stems are called quill stems which expands when tightened inside the fork steerer tube. Read More. This is the bottom of the frame which connects to the head tube. Ive invested over four years into researching & studying bicycle security. Looking for further detail? If youre not sure where the bottom bracket is, or what a derailleur is, then our handy bicycle anatomy guide for beginners is for you. applications. Before the invention of disc brakes, most bike rims had a flat braking surface that the brake pads squeeze to lower riding speed. Whilst not so common (more focused towards trial mountain bikes and some road bikes), hydraulic rim brakes exist. Smart Bike Locks: Are they a waste of money? Additionally, the rear derailleur cables normally run along the underside of the down tube, whilst more modern bikes house these cables inside the down tube. Subsequently, the rear derailleur plays another role in maintaining chain tension when shifting through your rear cogs. Once this pin is pushed down, the valve is open, and the tire can be inflated. There are two widely used types of bicycle brakes: rim brakes and disc breaks. Pin. The standard helmet materials are crushable foams. Your email address will not be published. As you may already know, mechanical brake cables use an outer housing that protects the brake cable and allows it to move freely inside. You will find dropper seatposts on certain mountain bikes (mainly for XC, Enduro) for automatic post height adjustment, via a control on the handlebars. It consists of a spindle (which the crankset attaches to), and bearings (which allow the smooth rotation of the spindle). A bike headset is a rotatable bicycle component that sits on your forks steerer tube (above and below your head tube). bicycle. So if your bike doesnt have any gears, there will only be one cog. Spokes are the rods that connect the rim of a bicycle wheel to the hub. There are usually two (together called a wheelset). There are many parts of a This slots into the seat tube of the frame and is where you attach your saddle. If your cone is too loose, the hub may have play in it, and if the cone is fitted too tightly, the wheel will not spin freely. The rear derailleur is the bike part that moves the chain from one cassette cog to another on the rear wheel when you shift gears. These clamps are a metal band or collar that tightens the top of the seat tube, holding the seat post in place.

A bike stem attaches the handlebars to the steerer tube of your front fork. Its made up of 3 parts: the hub shell, the bearings and the axle. The seat tube runs up from the bottom bracket shell to the saddle, connecting the seat stays to the top tube, and the chainstays to the down tube. These are the minor cogs that the chain runs around underneath the derailleur/cassette which allow it to keep moving smoothly on its return to the chainset. Saddles come in many shapes and sizes. In the bike parts diagram above, I've labelled some of the most important bicycle components. It includes: The fork connects the front wheel to the frame. These are used to determine correct saddle positioning. These are the actual braking mechanisms on the bike which tighten and release when the brake levers are pulled. When changing gear, the bicycle chain is shifted on the chainrings and cassette by the derailleurs. The top tube is also known as the cross-bar and its the one you step over to mount the bike! Your bike top tube, also referred to as a cross-bar, connects the seat tube to the top of the head tube and runs parallel to the ground. This will only feature if you have a double or triple chainset as it moves the chain up and down the rings using the cables attached to the gear levers. selection. My names James, Im an avid cyclist and the lead editor of BikeLockWiki. Bike Lock Jammed? Handlebars are one of the most crucial parts of your bikes anatomy. By learning each of your bikes components and understanding basic bicycle anatomy, youll be back on two wheels faster if part of your bike breaks or requires maintenance. A rear derailleur is the bicycle component that transfers the chain between the sprockets of the cassette on the rear wheel. The length of your top tube dictates the position youll be riding in whilst cycling. Yep, I was a serial, Parts of a Bike Diagram: Bicycle Anatomy for Beginners. moving mechanical parts: everything but the wheel, frame, seat and handle Typically grips are found on mountain bikes, BMXs, hybrids and several other types of bikes. The tire fits over an air filled inner tube which provides suspension. This means tubular tires provide better shock absorption than clincher tires of the same size. But on trikes youll find three. The main parts of a bicycle are wheels, frame, seat, handle bars, and components.