Anti-squat is a suspension parameter for full-suspension mountain bikes ( full-suspension bikes) that describes how strongly the rear suspension reacts to pedaling force. More precisely, anti-squat indicates the degree to which the bike compresses into the suspension or "works" against...

Definition: The Avinox drive is a powerful, intelligent mid-motor system for e-bikes – especially e-mountain bikes – developed by DJI, known for its drone technology. It combines low weight, high performance, and modern sensor technology with an innovative operating concept....

Bear trap pedals are bicycle pedals with an open, usually metallic design and serrated edges or pins that resemble paws. They provide particularly good grip between the shoe sole and the pedal, even in wet, muddy, or rough terrain. Features...

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...

Big Bike bezeichnet im Fahrrad- und E-Bike-Kontext besonders große, robuste Fahrräder, die für hohe Belastungen, schwere Fahrer oder anspruchsvolles Terrain ausgelegt sind. Der Begriff ist kein genormter Fachausdruck, wird aber häufig im Handel und Marketing verwendet, um stabile E-Bikes mit...

A boost button (also turbo button, power button or boost mode) on an e-bike is a function that allows you to activate short-term, maximum motor support at the push of a button – regardless of the currently selected support level....

The Bosch Active Line Plus is a versatile and harmoniously tuned e-bike motor, particularly well-suited for city, trekking, and everyday bikes . Part of Bosch's Active Line series, it is characterized by a natural, quiet riding experience and balanced power...

The Bosch BDU3360 drive unit is a mid-drive motor from the Performance Line series in the "Smart System". It delivers a maximum torque of 75 Nm , provides support of up to 340% of the applied pedaling force, and is...

The Bosch Drive Unit BDU38 , better known as the Performance Line CX Gen5 , is the fifth generation of Bosch's performance-oriented drive system and is aimed at sporty e-mountain bikes and demanding sporty e-bike categories. The unit combines strong...

Bremsscheiben-Richtwerkzeug (auch Bremsscheiben-Richter oder Disc Brake Truing Tool) bezeichnet ein spezielles Fahrradwerkzeug, mit dem leicht verzogene Bremsscheiben (Scheibenbremsen) wieder ausgerichtet werden können. Ein Bremsscheiben-Richtwerkzeug ist ein handgeführtes Werkzeug aus Metall, das gezielt zum vorsichtigen Richten von Seitenschlägen oder minimalen Verformungen...

A chain whip is a specialized bicycle tool used to remove or secure cassettes (cogs) on the rear wheel. It's essential when removing a cassette—for example, to clean it, replace it, or service the rear wheel. Structure of a chain...

Cleats are small metal or plastic plates that are attached to the sole of special cycling shoes. They allow the shoes to clip into clipless pedals , thus ensuring a secure connection between the shoe and the pedal. Features are...

A crank puller is a special tool needed to remove the crank arms of a bicycle or e-bike from the bottom bracket axle . Because the crank arms are pressed tightly onto the axle, they usually cannot be removed without...

Current , measured in amperes (A) , describes how much electric charge flows through a conductor per second. It is one of the central quantities in electrical engineering and also plays a crucial role in e-bikes . What does ampere...

Debalancing is the imbalance of cell voltages within a battery pack. This means that individual cells have different charge levels over time or with repeated use, causing their individual voltages to diverge. Causes: Natural aging: Over time, the properties of...

In cycling, drafting refers to riding in the slipstream of one or more riders ahead. The rider behind takes advantage of the reduced air resistance to maintain the same speed with less energy expenditure. The term derives from the English...

An e-bike water bottle battery is a battery for e-bikes that's designed in the shape and size of a water bottle and fits into the bike's bottle cage. It's a space-saving and visually unobtrusive solution for powering the e-bike or...

An e-bike controller is the electronic heart of an e-bike. It controls and coordinates communication between the motor, battery, display, and sensors (e.g., pedal force sensor, speed sensor). Without it, the interaction of these components would not function. Tasks of...

EQP, kurz für Equipped, ist ein Begriff aus der Fahrradwelt, der beschreibt, wie ein Fahrrad serienmäßig ausgestattet ist. Er gibt an, welche Komponenten und Zubehörteile bereits ab Werk montiert sind und welche zusätzlichen Features das Fahrrad „einsatzbereit“ machen. Hintergrund Im Fahrradbereich...

In cycling, echelon — also known as fan formation — refers to a special riding style used in strong crosswinds. The goal is to utilize as much slipstream as possible from the rider in front through clever positioning. What is...

Flat pedals are flat bicycle pedals without a clipless mechanism, offering the rider a large, flat contact surface. The shoe rests freely on the pedal, allowing for quick transitions between mounting and dismounting. Features wide platform made of aluminum, magnesium...

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...

A Gran Fondo is an organized, often large-scale cycling event for amateur and recreational cyclists , characterized by a long distance and often challenging routes . The term comes from Italian and literally means "long distance" or "long ride" ....

Heated grips on an e-bike keep your hands warm in cold temperatures, increasing comfort and safety when riding in autumn and winter. They are a particularly useful addition for commuters or frequent riders, allowing them to continue cycling even in...

A kick lock is an integrated locking system on certain e-bikes that combines mechanical and electronic security features. It allows the bike to be locked by simply pushing a lever or button on the rear wheel. The kick lock is...

Die Kilowattstunde (kWh) ist eine Maßeinheit für Energie. Sie gibt an, wie viel elektrische Energie verbraucht oder gespeichert wird, wenn eine Leistung von einem Kilowatt (kW) über die Dauer von einer Stunde genutzt wird. Was bedeutet Kilowattstunde genau? Eine Kilowattstunde entspricht:...

Als Klemmbereiche bezeichnet man am Fahrrad jene Zonen, an denen Bauteile durch Schraubverbindungen fixiert und geklemmt werden. Sie sind besonders sicherheitsrelevant, da hier Kräfte übertragen werden und falsches Anziehen zu Materialschäden oder Bauteilversagen führen kann. Im Zusammenhang mit Fahrradwerkzeug meint der...

La Vuelta a España , or simply La Vuelta , is one of the three Grand Tours in professional road cycling, alongside the Tour de France and the Giro d'Italia . It has been held since 1935 and is considered...

Ohm's law is a fundamental law of electrical engineering. It describes the relationship between voltage , current, and resistance – and is also relevant for understanding e-bike electronics . The formula of Ohm's law Ohm's law states: U = R...

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...

In road cycling, the peloton refers to the main group of riders who move closely together during a cycling race. The term comes from French and literally means "small troop" or "platoon." Function of the Peloton The peloton's primary purpose...

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...

RPM, in cycling, stands for "revolutions per minute." It describes how many times the crank (pedal unit) rotates in one minute. Cadence (RPM) is a crucial factor for your performance, endurance and efficiency when cycling. In cycling, cadence (also called...

A range extender on an e-bike is an additional battery that extends the range of the main battery. It functions like a kind of "extra tank" and ensures that you can ride your e-bike significantly further without having to recharge....

Smooth welding refers to a special welding and post-processing technique in bicycle frame construction, in which weld seams are ground and smoothed after the actual welding process. The aim is to make the transitions between the individual frame tubes virtually...

The standing pedal stroke , or "standing pedal stroke," is a cycling technique where the rider stands up from the saddle and pedals while standing. This involves actively using body weight to generate more power at the cranks . The...

Strava is a globally popular online platform and app for recording, analyzing, and sharing athletic activities such as cycling, running, hiking, or rowing. Strava has become a standard tool, especially among cyclists, for documenting training progress, comparing performances, and connecting...

The term tubeless refers to a tire system where no separate inner tube is used between the tire and the rim. Instead, the tire seals directly against the special tubeless rim. A sealant inside the tire ensures that small leaks...

Umschaltknarre (auch Freilaufknarre oder Teil des Freilaufmechanismus) bezeichnet ein zentrales Bauteil in der Hinterradnabe von Fahrrädern. Sie ermöglicht es, dass sich das Hinterrad frei drehen kann, ohne dass die Pedale mitlaufen, und sorgt gleichzeitig dafür, dass die Tretkraft beim Pedalieren...

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....

Aerodynamics is the study of the flow behavior of air – in cycling, it is specifically about minimizing air resistance while riding in order to progress faster and more efficiently . Why is aerodynamics important? From around 25 km/h, air...

The chainring is a central component of the bicycle drivetrain. It is the sprocket that is directly connected to the crank arms and transmits the rider's power to the rear wheel via the bicycle chain. Chainrings are available in various...

The crank is a central component of the bicycle drivetrain and, together with the pedals and bottom bracket, forms the connection between human muscle power and the bicycle's drive system. The crank converts the applied force into a rotational movement...

Efficiency describes how efficiently energy is converted. It indicates what proportion of the energy input is actually available as usable power . Definition of efficiency Efficiency is expressed as a ratio: Efficiency = Useful energy ÷ Energy input It is...

A hub dynamo is a generator integrated into the front wheel that produces electrical energy while riding. This energy is primarily used to power the bicycle lights . Unlike traditional side-mounted dynamos, the hub dynamo operates almost silently, is weather-independent,...

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...

A planetary gear (also called planetary wheel gear) is a special type of gear that is also used in e-bikes – especially in hub gears or motors, such as mid-engines. Structure of a planetary gear A planetary gear typically consists...

Rebound is a term from suspension technology and refers to the damping effect of a suspension during rebound. In road bikes, it is used particularly on gravel bikes, mountain bikes, and suspension seatposts — in other words, wherever suspension components...

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:...

A spoke magnet is a small component that is attached to the spoke of a bicycle and is primarily used in combination with bicycle computers or e-bike displays to measure speed and cadence . How it works The spoke magnet...