Parts of a mountain bike

Parts of a mountain bike

A mountain bike is a bicycle created for riding off-road on rough terrain. Mountain bikes share similarities with other bikes but have more durable components since they are meant to be ridden on bumpy surfaces. There are three main types of mountain biking: cross country racing, all-mountain riding, and downhill racing.


The main body of a mountain bike. This is usually made from aluminum or carbon fiber, and it keeps the bike sturdy and strong even when riding at high speeds.


The round component that rolls on the ground and holds the tire onto the frame. Wheel size is measured by diameter in millimeters. A standard mountain bike wheel has a diameter of 26 inches or 650mm.


The rubber part comes into contact with the ground while riding. This provides traction and allows you to ride over obstacles, rocks, and roots on different types of terrain.

Right pedal/Left pedal:

Each foot uses only one side of the bike’s pedals during operation.


The two levers on the handlebars create friction with the wheel to slow down or stop. These are usually disc or V-brakes.

Brake Pads:

The parts of the brake that actually create friction and stop the bike. These fit over the corresponding brake arms on either side of the wheel.

Disk Brakes:

A type of brake that uses a rotating disk to stop the wheel. A caliper holds pads over the disk, which are pressed together with levers on the handlebars to create friction and slow or stop movement.


The seat is one of the most important parts of a mountain bike, as this is where you will be sitting for your ride. A narrow seat is more efficient for riding, but a wider seat provides extra comfort.


This component allows you to turn the front wheel while still holding onto the bike’s frame. There are four basic styles of handlebars found on most mountain bikes: wide-set flat bars, swept-back bars, high-rise bars, and low-rise/riser bars.

Dropper post:

A remote-controlled Seatpost drops down by the press of a button on the handlebar, allowing the rider to assume the most efficient and comfortable riding position possible for every section of their ride. This is extremely useful when climbing or descending hills since it allows you to relax your arms and sit back as you ride down. Dropper posts can adjust their height between 30 and 120mm in just a few seconds, and most premium bikes come with one as an add-on.

Wheel size:

Mountain bikes have three different types of wheels: 26 inches (650mm), 27.5 inches (650B), and 29 inches (29er). The first two are more common on mountain bikes since they are more versatile.


A bike’s ability to accelerate, climb hills and maintain speed is determined by three components of its drivetrain: derailleurs and shifters, the chain, and the cassette. The rider uses a shifter to switch between gears and by changing gears you can change your speed.


The mechanism is responsible for moving the chain between different sprockets on the cassette. Mountain bikes have two derailleurs, one attached to the front of the frame and one attached to the rear wheel.


This is a collection of sprockets that is attached to the rear wheel of the bike. The cassette allows you to change gears while riding on various types of terrain.


The chain is what makes contact with the sprockets on the cassette or derailleur, thus moving your wheels and allowing you to ride.

Suspension [front fork/rear shock]:

A component that reduces the amount of shock a rider feels when riding over bumps, rocks, and roots. This is usually a shock linked to spring by a pivot point.


It is important for grips to remain securely attached to the handlebars since these are what you use to hold onto your bike while riding. They provide safety from falling off the bike, and they provide comfort to the hands while riding.


These are small metal or plastic pieces that can be attached to the pedals of a mountain bike. They allow the rider to perform tricks such as skids, slides, and grinds. The two types of pegs are front pegs and rear pegs.


A small metal or plastic component is used as an extra kickstand for the bike to prevent it from falling over when not being ridden. It can also be used as a breakaway safety device, making it fall off if the bike is pulled too hard.

Cadence Sensor:

An electronic sensor on a mountain bike records the rate at which the rider pedals and transfers this to a display unit. This can be used to track how hard you are working and provide you with useful information such as speed and distance traveled.

Brake lever:

A component on the left side of the handlebars allows the rider to brake or slow down by pressing it. On a mountain bike, the rider must pull on at least one lever to slow down or stop, regardless of which brake system they have.

Brake calipers:

These are a type of brake caliper that is used to attach brake pads onto a wheel’s rim to grip and slow it down. The majority of these calipers use either a hydraulic or mechanical setup.

Grip shifters:

There are two types of grip shifters – trigger shifters and twist shifters – both of which allow the rider to change gears while riding. The rider’s hands stay gripping the same place during a ride, resulting in a safer experience with better control over the bike. As well as this, grip shifters are easier to use.

Seat post:

A component that is located in between the seat and the down tube of a frame, with which you can adjust the height. This means that it is not possible for a rider to control their own height when riding.


The links on a bicycle chain that run from the rear wheel at a slant, to the crank arms. This component is metal and located on either side of the top tube.

Seat tube:

The seat tube runs from the bottom bracket to the top of your seat, which means that it contains a water bottle cage and forms part of the structure for holding up the seat.

Top tube:

The top tube on a mountain bike is located at the very front of the frame and runs from the head tube to the seat tube, and it looks like a large “T” shape.


This part of a bicycle enables all the components such as forks and handlebars to be attached to the frame of a bicycle.


This is where you attach your fork and handlebars to the rest of the frame. You can adjust its height by using spacers on either side, which increase or reduce the distance between them and the bottom bracket.

Down tube:

The down tube runs from the head tube to the bottom bracket. It is the biggest tube on the frame, enabling the rider to place their feet on either side of it when riding off-road.

Bottom bracket:

Located at the very bottom of a bicycle frame, this component contains bearings that are used to unite several components together. This means that they are able to rotate without friction which results in increased efficiency.


A-frame is made up of four parts; the head tube, down tube, top tube, and seat tube. It is this frame that holds all the other components in place and gives them strength, which in turn means they can function properly and last a long time.


This component goes up through your front wheel and into the head tube of your bicycle’s frame where it attaches to the headset via a hexagonal system called a star nut.


There are two types of handlebars that most mountain bikes have, and these are flat or riser bars. They both allow you to place your hands in the correct position for riding, however, they serve different purposes. Flat bars offer lower control whereas riser bars offer greater stability and comfort on long downhill sections.


A component in your wheel that is used to fasten your tyre/tube onto the bicycle. It consists of a metal ring with spokes protruding from it. It has an axle that attaches it to the hub, along with two nuts or quick-release mechanisms, which hold it in place on either side of the dropouts.


This is where you attach your wheel onto your kayak, and comprises of an outer metal case that contains the gear system and bearings. The axle fits through here, enabling the wheel to rotate freely around it. It allows for increased efficiency due to its free rotation without friction.

Overall, all of these components work together on a bicycle to create a strong and reliable vehicle that is able to efficiently reach speeds of up to 25 miles per hour while also maintaining its durability for several years. This means that it won’t break down when you most need it!

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