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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...
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A bicycle indicator is a small, usually battery-operated or rechargeable light device that is attached to a bicycle and enables the direction indicators to flash (similar to those on cars or motorcycles). Function and purpose: The bicycle indicator shows other...
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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...
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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...
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Die Karkasse ist das tragende Gewebe im Inneren eines Fahrradreifens. Sie besteht aus eng verwebten Fäden, meist aus Nylon (Polyamid). Das Gewebe ist beidseitig mit Gummi beschichtet und im 45-Grad-Winkel zur Laufrichtung geschnitten. Dadurch gibt es dem Reifen Form und Stabilität und bleibt zugleich flexibel genug, um Stöße und Vibrationen abzufangen.
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Cleats sind die Schuhplatten, mit denen Du in Klickpedale einrastest. Hier erfährst Du, welche Cleat-Systeme es gibt, was Float bedeutet, wie Du Cleats richtig montierst und wann sie gewechselt werden müssen.
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Klickpedale verbinden den Radschuh über eine Schuhplatte (Cleat) fest mit dem Pedal. Hier erfährst Du, wie sie funktionieren, welche Systeme es für Rennrad, Gravel und MTB gibt und für wen sie sich lohnen.
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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:...
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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...
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Flat-Pedals sind breite Plattformpedale mit Pins – ganz ohne Klickmechanismus. Hier erfährst Du, wie Flat-Pedals aufgebaut sind, für wen sie sich eignen, worauf Du beim Kauf achten solltest und wie sie im Vergleich zu Klickpedalen abschneiden.
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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...
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Der Gabelschaft (auch Steuerrohr der Gabel oder Gabelrohr) ist das senkrechte Rohrstück, das die Fahrradgabel mit dem Rahmen verbindet. Er wird von unten in das Steuerrohr des Rahmens eingeführt, läuft durch den Steuersatz und ragt oben am Rahmen heraus. Auf ihm sitzt der Vorbau — und damit letztlich der gesamte Lenker.
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The freehub body , also known as a cassette freehub , is a key component of the rear-wheel drive on a bicycle. It connects the rear hub to the cassette and allows the wheel to continue turning even when the...
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Das Französische Ventil ist ein schlankes Fahrradventil mit 6 mm Schaftdurchmesser. Es heißt auch Sclaverandventil, kurz SV, oder Presta-Ventil. Du findest es an Rennrädern, Gravelbikes und hochwertigen Mountainbikes. Der Name Sclaverand geht auf den französischen Hersteller zurück, der das Ventil entwickelte. Die Bezeichnung Presta ist im englischsprachigen Raum üblich. Ausführlich beschreibt das Ventil auch der Eintrag Sclaverandventil.
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Der Umwerfer schaltet die Kette vorne zwischen den Kettenblättern. Hier erfährst Du, wie ein Umwerfer am Fahrrad funktioniert, welche Bauarten es gibt, wie Du ihn einstellst und warum viele Räder heute ganz ohne Umwerfer auskommen.
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Ein Gepäckträger ist ein Rahmen aus Rohr oder Profil, der über dem Hinter- oder Vorderrad am Fahrrad befestigt wird und Taschen, Kisten oder Kindersitze trägt. Er verlagert das Gewicht vom Fahrer auf das Rad und ist das Standard-Zubehör für Alltag und Radreisen.
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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...
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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...
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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...
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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?...
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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...
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Jockey wheels, also called idler pulleys or guide pulleys, are two small pulleys in the rear derailleur of a bicycle. Jockey wheels are the two small pulleys in the rear derailleur of a bicycle. They guide the bicycle chain and...
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Structure and Function In a classic headset, the fork is guided in the frame via a tapered bearing area. The Overdrive headset expands on this principle: The upper bearing is usually larger in diameter (often from 1 1/8 inches to...
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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...
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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...
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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...
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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...
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A Sclaverand valve, also known as a French valve or Presta valve , is a special valve commonly used on road bikes and other high-end bicycles. It is narrower and longer than the standard Schrader valve (common on car tires)...
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A quick-release skewer is a practical locking mechanism on bicycles that allows wheels or seatposts to be attached and detached without tools . The system consists of an axle with a lever, a clamping nut, and an eccentric clamping mechanism...
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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...
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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...
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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...
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Das Schrader-Ventil oder Autoventil (AV) ist ein Fahrradventil mit federbelastetem Ventileinsatz. Es ist baugleich mit dem Ventil an Autoreifen. Du findest es an Citybikes, Trekkingrädern, vielen E-Bikes und an Mountainbikes. Der Name geht auf den US-Hersteller Schrader zurück, der Ventile für die aufkommende Automobilindustrie entwickelte.
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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...
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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...
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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....
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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...
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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...
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Die Steckachse ist eine Achse, die durch Nabe und Gabel bzw. Rahmen gesteckt und verschraubt wird. Dieser Artikel erklärt Aufbau, Vorteile gegenüber dem Schnellspanner, die gängigen Standards (Boost, 12 × 100, 12 × 142) und worauf Du bei Ein- und Ausbau achten musst.
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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...
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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...
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An upside-down fork (USD fork for short) is a type of telescopic fork in which the thicker fork tubes are mounted at the top and the thinner stanchions at the bottom - i.e. "upside down" compared to the classic design....
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Die V-Brake ist eine Felgenbremse mit zwei langen Bremsarmen, die von beiden Seiten auf die Felge drücken. Sie ist leicht, günstig und einfach zu warten. Seit den 1990er-Jahren war sie die Standardbremse an Trekking- und Mountainbikes. Heute wird sie an modernen Rädern meist von der Scheibenbremse abgelöst.
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Speichen verbinden Nabe und Felge und machen das Laufrad stabil. Hier erfährst Du, wie eine Fahrradspeiche aufgebaut ist, wie viele Speichen ein Fahrrad hat, welche Speichenarten und Einspeichmuster es gibt und was bei einer gerissenen Speiche zu tun ist.
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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...
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Ein Nabendynamo sitzt in der Vorderradnabe und erzeugt beim Fahren Strom für das Licht. Dieser Artikel erklärt Funktion, Vor- und Nachteile, den Vergleich mit dem Seitenläuferdynamo, Standlicht, USB-Laden und die Nachrüstung.
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The pedal axle is the load-bearing connecting element between the pedal and the crank. It transmits the pedaling force, enables the rotation of the pedal, and is a central safety-relevant component in the bicycle drivetrain. The pedal axle connects the...
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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...
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Die Felge ist der äußere Ring des Laufrads, auf dem der Reifen sitzt. Hier erfährst Du, wie eine Fahrradfelge aufgebaut ist, welche Felgenarten und Felgengrößen es gibt und worauf Du bei Maulweite, Material und Bremssystem achten solltest.
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A shift cable is a central component of a bicycle's gear system. It mechanically transmits the movement from the shift lever to the front or rear derailleur, ensuring that the chain shifts precisely between gears. Structure of a shift cable:...