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....

A Belgian roundabout is a special cycling technique that is mainly used in time trials or in breakaway groups to maintain speed while distributing the load evenly among the riders. Course of the Belgian roundabout Two rotating lines: Riders move...

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...

An organic bike is a term used to distinguish it from an e-bike. It refers to a traditional bicycle without an electric motor — i.e., a bicycle that is propelled purely by muscle power. The term "organic" is intended to...

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 Intuvia is a display for e-bikes that serves as the central control element. It is part of the Bosch e-bike system range and is particularly known for its ease of use and good readability. The Intuvia display offers...

Bärentatzen sind Fahrradpedale mit einer offenen, meist metallischen Bauweise und gezackten Kanten oder Pins, die an Tatzen erinnern. Sie sorgen für besonders guten Halt zwischen Schuhsohle und Pedal, auch bei Nässe, Matsch oder ruppigem Gelände. Merkmale robuste Bauweise, häufig aus...

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 sind kleine Metall- oder Kunststoffplatten, die an der Sohle spezieller Radschuhe befestigt werden. Sie ermöglichen das Einrasten in Klickpedale und sorgen so für eine feste Verbindung zwischen Schuh und Pedal. Merkmale werden mit Schrauben an der Schuhsohle montiert verschiedene Bauformen,...

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...

A digital battery passport is an electronic document containing comprehensive information about a battery. It is designed to improve the transparency, traceability, and sustainability of batteries and is particularly relevant for electric car and e-bike batteries. Contents of a digital...

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...

On a road bike, "drops" refers to the lower part of the curved road bike handlebar (drop bar). When riding in drops, you grip the handlebars in the lowest position. This has several advantages: Aerodynamics – The lower stance reduces...

Cornering lights are a special lighting technology in which the illumination of the light automatically adjusts when cornering and when the incline changes. As with a car, the light shines in the direction the bike is turning and ensures that...

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...

The ETRTO (European Tyre and Rim Technical Organisation) table contains the standardized sizes for bicycle tyres and rims. It ensures that tyres and rims from different manufacturers are compatible. In the overview table you can compare the common bicycle tire...

From 18 February 2027, the following significant changes will come into force under the EU Battery Regulation 2023/1542: Digital Battery Passport: A digital battery passport will be mandatory for batteries in light transport vehicles (e.g., e-bikes), industrial batteries with a...

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 sind flache Fahrradpedale ohne Klickmechanismus, die dem Fahrer eine große, ebene Auflagefläche bieten. Der Schuh liegt frei auf dem Pedal auf, wodurch ein schneller Wechsel von Auf- und Abstieg möglich ist. Merkmale breite Plattform aus Aluminium, Magnesium oder Kunststoff...

The crown race is a component on a bicycle fork that plays a key role in connecting the fork and headset. It is also called the cone ring, bearing seat, or crown race. What does the fork race do? The...

Ein Gran Fondo ist eine organisierte, oft groß angelegte Radsportveranstaltung für Amateur- und Hobby Rennradfahrer, die sich durch eine lange Streckenlänge und oft anspruchsvolle Routen auszeichnet. Der Begriff stammt aus dem Italienischen und bedeutet wörtlich „große Strecke“ oder „große Fahrt“....

On road bikes, hoods refer to the brake and shift lever grips located at the top of the curved road bike handlebar (drop bar). Most modern road bike brakes are integrated brake/shift levers (e.g., Shimano STI, SRAM eTap, or Campagnolo...

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...

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...

La Vuelta a España, kurz La Vuelta, ist eine der drei großen Landesrundfahrten im professionellen Straßenradsport, neben der Tour de France und dem Giro d’Italia. Sie wird seit 1935 ausgetragen und gilt als eines der prestigeträchtigsten Etappenrennen der Welt. Geschichte...

In the cycling context, a mullet bike is a type of bicycle that is equipped with two wheels of different sizes. The term comes from English and alludes to the "mullet" hairstyle, which is short at the front and long...

The term "off-camber" refers to a type of terrain or curve where the slope of the ground slopes sideways rather than supporting the rider. Off-camber spots typically have a sideways slope that challenges balance and traction. Such spots often occur...

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 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)...

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....

On a racing bike, the tops refer to the upper, straight section of the handlebars between the brake and shift levers. Positioning your hands on the tops creates a particularly upright and relaxed position. Advantages of the top position Comfort...

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....

Slipstreaming is a common phenomenon in road cycling that occurs when strong crosswinds affect the peloton. This causes the peloton to spread out, and small groups form as riders try to stay in the slipstream. In cycling, slipstreaming refers to...

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...

A bicycle air pump is a tool used to increase the air pressure in a bicycle's tires to the recommended level. It is used to pump air into the tires so that the bicycle can ride safely and efficiently. There...

A bicycle spoke is a thin metal rod that connects the bicycle rim to the wheel hub. Spokes play a crucial role in the stability, strength, and elasticity of the wheel. They distribute the forces acting on the wheel evenly...

Cadence refers to the pedaling frequency of a cyclist, i.e., how many times a cyclist completes a full rotation of the pedals per minute. It is measured in revolutions per minute (rpm). A high cadence means that the pedals are...

The cassette is the group of sprockets on the rear wheel of a bicycle. It consists of several individual sprockets (also called pinions) that are pushed onto the freewheel body of the rear hub. The cassette is a central component of...

A chain gauge is a small tool that allows you to easily and reliably measure the wear of a bicycle chain. It's a particularly useful tool for frequent riders or anyone who wants to preserve their bicycle parts for a...

Lycra is the brand name for a particularly elastic synthetic fiber, also known as elastane (or "spandex" in the USA). It was developed by DuPont in 1958 and is now used in many sports and functional clothing items. Properties of...

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...

The rim is an essential component of a bicycle wheel. It forms the outer ring of the wheel, onto which the tire is mounted. The rim is connected to the hub via spokes and provides the necessary stability, load-bearing capacity,...

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 gear ring is a ring-shaped component with teeth used in various mechanical systems. The term can have different meanings depending on the context. 1. Bicycle technology (cassette & sprocket set) On a bicycle, the sprocket refers to the rear...

Torque, also known as torque, describes in the bicycle context the force that acts on the crank or rear wheel to drive the bicycle. It is a physical quantity that is measured in Newton meters (Nm) and significantly influences the...

A torque wrench is a tool used to tighten bolts and nuts to a precise, predefined torque. This is especially important to ensure an optimal connection without over - or under-tension. Torque is measured in Newton meters (Nm). Application Torque...