What is a belt drive? A belt drive is a machine element used to transmit power from one rotating body (the drive motor) to another (the drive wheel). There are different types of belt drives, such as V-belts, timing belts...

The bottom bracket is an essential component on bicycles that plays a central role in the drive system. It connects the crank arms and thus the pedals to the frame of the bicycle. The bottom bracket is a fundamental component...

A "disc brake" is a part of a specific braking system, also used in bicycles to quickly reduce speed or bring the bike to a stop. It consists of several components that work together to provide efficient braking performance. Here...

A carbon bike is a bike where the frame and possibly other components are made from carbon fiber. Carbon fiber is an extremely lightweight yet strong material that is created by processing carbon fiber. The frame of a carbon bike...

A carcass tire refers to the structure or backbone of a bicycle tire or car tire. The carcass is the basic framework of the tire upon which the tread and tread pattern are built. The carcass is usually made up...

Clipless pedals, also known as clipless pedals, are a special type of bicycle pedal that creates a direct connection between the rider's cycling shoe and the pedal. Unlike traditional pedals, on which the foot simply rests, clipless pedals clip the...

A crankset on a bicycle is an essential component of the drive system that serves to convert the muscle power exerted by a cyclist into a rotational movement of the rear wheel. The crankset usually consists of three main areas:...

A crankset is a central component on a bicycle that consists of two crank arms to which the pedals are attached. The crankset is held in place by the bottom bracket shell in the middle of the bicycle frame and...

The function of the derailleur hanger is to support the rear derailleur and hold it in the correct position to enable precise gear changes. Because the derailleur hanger is relatively exposed, it can be damaged in the event of an...

What is a bicycle expander? An expander (also called an expander bolt or steerer tube expander) is a component used in bicycle forks to secure the steerer tube in the head tube while providing a secure connection between the steerer...

Eine Fahrradspeiche ist ein dünner Metallstab, der die Fahrradfelge mit der Nabe des Laufrads verbindet. Speichen spielen eine entscheidende Rolle für die Stabilität, Festigkeit und Elastizität des Rades. Sie verteilen die auf das Rad wirkenden Kräfte gleichmäßig und sorgen dafür,...

Die Felge ist ein essenzieller Bestandteil eines Fahrradlaufrads. Sie bildet den äußeren Ring des Rades, auf dem der Reifen montiert wird. Die Felge ist über Speichen mit der Nabe verbunden und sorgt für die nötige Stabilität, Tragkraft und Rundlaufgenauigkeit des...

A folding pedal is a special bicycle pedal that offers the possibility of folding or collapsing. These pedals are particularly popular on folding bikes , which are known for their compactness and easy storage. The folding mechanism allows the pedals...

What is a steerer tube? A steerer tube is the vertical part of the bicycle fork that inserts into the head tube of the frame and holds the handlebars and stem. The steerer tube is usually made of steel or...

What is a derailleur? A front derailleur is a mechanical bicycle component mounted on the frame or seat post that moves the rear derailleur chain from the front sprocket to another sprocket. The derailleur is operated by a shift cable...

What is the handlebar clamp? The handlebar clamp is the part of the stem component of a bicycle that attaches the handlebars to the stem. The stem is the connecting element between the head tube of the bicycle frame and...

A head tube extension is a bicycle accessory used to increase the height of the head tube and therefore the position of the handlebars on a bicycle. It consists of an additional piece of tube that slides onto the existing...

What is a head tube on a bicycle? The head tube is a central component in the frame of a bicycle that connects the fork to the frame and allows the front wheel to rotate. It forms the upper part...

What is a hollow chamber rim ? A hollow section rim is a special type of bicycle rim that consists of two shells joined together to form a cavity. The outer shell forms the outer edge of the rim, while...

A hooked rim is a special type of bicycle rim that has a hook shape to hold the tire securely on the rim. Hooked rims are particularly common on road bikes and older bikes. How does a hook rim work?...

A hub brake is a type of bicycle brake that is located in the hub of the bicycle wheel. Unlike other types of brakes that act on rims or discs, the hub brake applies braking action directly to the hub....

A hub gear is a closed gear system that is integrated into the hub of the rear wheel of a bicycle. Unlike the widely used derailleur gears, where the chain is moved over various gears, the hub gear allows gears...

Cartridge bearings are standardized ball bearings that are widely used in the bicycle industry. They are usually made of steel or ceramic and offer high performance and durability. They are usually used in the hub or bottom bracket of the...

Jockey Wheels, auch Schaltungsröllchen oder Leit- und Spannrollen genannt, sind zwei kleine Umlenkrollen im hinteren Schaltwerk eines Fahrrads. Jockey Wheels sind die beiden kleinen Umlenkrollen im Schaltwerk eines Fahrrads. Sie führen die Fahrradkette und sorgen dafür, dass sie reibungslos über...

The pedal is a component of a bicycle and is used to transfer the cyclist's pedaling power to the bicycle. The pedal is located at the end of the cranks, which are connected to the bottom bracket. The cyclist puts...

What is a "Pinion gearbox"? A Pinion gearbox is an innovative bicycle transmission system that offers an alternative to traditional gear shifting. Developed by the German company Pinion GmbH, it offers internal gear shifting in the form of a gear...

What are platform pedals? Platform pedals are a type of bicycle pedals that provide good grip and efficient power transfer between the rider and the bike due to their wide and flat surface. Unlike clipless pedals or clipless pedals, which...

Pressfit bearings are also very common in bicycle construction and are often used as bottom bracket bearings . Unlike conventional threaded bottom brackets, Pressfit bearings do not have threaded bushings and are instead pressed directly into the bottom bracket shell...

A toggle clamp is a mechanism or tool used to fasten or loosen components quickly and easily without the need for tools such as wrenches or screwdrivers. In different contexts, toggle clamps can have different shapes and functions. A quick...

What is a rear derailleur on a bicycle? A rear derailleur is an essential part of a bicycle gear system that is responsible for switching the chain between different pinions on the rear sprocket set. It allows the rider to...

What is a reducing sleeve? A bicycle reducer sleeve is an adapter that allows a handlebar or stem with a larger diameter to be mounted on a fork with a smaller diameter. The sleeve is typically made of aluminum or...

Ein Sclaverandventil, auch als Französisches Ventil oder Presta-Ventil bekannt, ist ein spezielles Ventil, das häufig bei Rennrädern und anderen hochwertigen Fahrrädern verwendet wird. Es ist schmaler und länger als das gewöhnliche Schrader-Ventil (das bei Autoreifen üblich ist) und benötigt einen...

The seat post is a part of a bicycle that serves to attach the bicycle saddle to the bicycle frame. It usually consists of an elongated tube that is inserted into the seat tube of the frame and is equipped...

What is the stem? The quill stem is an important part of a bicycle's steering system. It affects the rider's seating position and the bicycle's steering behavior. A longer quill stem results in a more stretched-out seating position, while a...

A steering damper, also known as a steering damping system or simply damper, is a component on bicycles that serves to improve the stability of the steering. This part is often used on mountain bikes , dirt bikes or motorcycles....

The stem is an important part of the steering system on a bicycle. It connects the handlebars to the fork of the bicycle. The stem allows the position of the handlebars to be adjusted in relation to the fork and...

What is a shock absorber on a bicycle? A rear shock, also known as a damper or rear shock, is a suspension element fitted to the rear end of a bicycle. Its purpose is to absorb shocks and vibrations caused...

A thru axle (also known as a thru axle system) is a special type of axle system used in various vehicles, particularly bicycles and mountain bikes . Unlike traditional quick releases, which secure the wheel with a quick release nut,...

What is the top tube? The top tube is a central component of the bicycle frame, also known as the "top tube". It connects the head tube, which houses the fork and handlebars, to the seat tube, which the saddle...

A U-brake, also known as U-brakes or downtube brakes, is a bicycle braking system commonly used on BMX bikes and some mountain bikes. It was developed in the late 1980s and has since become a popular choice for bikes used...

V-Brake on the bicycle The V-brake is a brake commonly found on bicycles. It consists of two pairs of arms attached to the brake bases of the bicycle frame and equipped with brake pads. When the brake lever is pulled,...

A daytime running light is a lighting device that is specifically designed for daytime operation and increases the visibility of a vehicle, in this case an e-bike or bicycle. Here are the essential features and functions of a daytime running...

What is a disc brake? The disc brake is a type of braking system used particularly on bicycles, motorcycles, and many types of motor vehicles. It consists of a metal disc, or brake rotor, connected to the wheel hub and...

A bicycle sprocket is a mechanical component that is an important part of a bicycle's drive system. It performs an important function by allowing the transfer of energy from the rider to the rear wheel. Here are five areas that...