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...

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...

In the context of bicycles and e-bikes , "big bike" refers to particularly large, robust bicycles designed for heavy loads, heavier riders, or challenging terrain . While not a standardized technical term, it is frequently used in trade and marketing...

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...

The Bosch Hub Line is a rear hub motor from Bosch eBike Systems, which is slated for installation in electric bicycles starting in 2027. With the Hub Line, Bosch is expanding its existing motor portfolio – which until now has consisted exclusively of mid-drive motors – to include, for the first time, a hub motor system developed in-house.

A brake disc straightening tool (also brake disc straightener or disc brake straightening tool ) is a special bicycle tool used to realign slightly warped brake discs (disc brakes). A brake disc straightening tool is a handheld metal tool specifically...

On a bicycle, clamping areas are those zones where components are fixed and clamped by screw connections. These areas are particularly important for safety, as forces are transmitted here and incorrect tightening can lead to material damage or component failure....

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...

A crimping tool is a hand tool that permanently joins two metal parts together through plastic deformation—without screws, soldering, or gluing. The term "crimping" describes precisely this process: The tool squeezes a metal element (the crimp sleeve) around a cable or wire in such a way that a positive-locking, tensile-resistant connection is created.

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...

In the context of bicycles and e-bikes, gear ratio describes the distance a bicycle travels in one complete crank revolution . It is usually given in meters per pedal revolution (m/rev) . Simply put: 👉 The unfolding shows how "far"...

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...

The Dunlop valve , also known as a Blitz valve , is a true classic and particularly widespread in Europe. It is frequently used on traditional bicycles, city bikes, and older models. The Dunlop valve is named after the British...

EQP, kurz für Equipped, kennzeichnet Fahrräder und E-Bikes, die bereits ab Werk mit Alltagsausstattung wie Beleuchtung, Schutzblechen und teils Gepäckträger ausgeliefert werden – im Gegensatz zu sportlich orientierten Modellen, die als reines Sportgerät ohne diese Anbauteile verkauft werden.

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" ....

Cycling is one of the most effective and joint-friendly endurance sports available. Whether commuting to work, enjoying a Sunday ride, or cruising through the city on an e-bike, regular cycling is an active investment in your health. This article summarizes...

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...

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...

Linkglide ist eine von Shimano entwickelte Antriebstechnologie für Kassette, Kette und Schaltwerk, die gezielt auf hohe Haltbarkeit und ruhiges Schaltverhalten statt auf minimales Gewicht ausgelegt ist. Sie bildet die technische Basis vieler Shimano CUES-Komponenten und richtet sich vor allem an E-Bikes, Trekkingräder und Alltagsfahrräder mit hoher Kilometerleistung.

A lithium-ion battery (Li-ion battery) is a rechargeable battery used in many modern devices – from smartphones and laptops to e-bikes. Due to its high energy density, low self-discharge, and long lifespan, it is now considered the standard in mobile...

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...

A reversing ratchet (also called a freewheel ratchet or part of the freewheel mechanism ) is a central component in the rear wheel hub of bicycles. It allows the rear wheel to rotate freely without the pedals turning, while simultaneously...

The car valve , also known as a Schrader valve , is one of the most commonly used valves in the bicycle sector – especially on city bikes, trekking bikes, and many e-bikes. It owes its name to its identical...

Shimano CUES ist eine seit 2023 eingeführte Schaltgruppen-Plattform von Shimano, die mehrere bisher getrennte Einsteiger- und Mittelklasse-Serien – darunter Altus, Acera, Alivio sowie Teile der unteren Deore-Reihe – zu einem einheitlichen System zusammenfasst. Der Name steht für „Contriving Unique Cycling Experience through Synergy" und beschreibt den Grundgedanken: Statt vieler einzelner Serien gibt es nun ein durchgängiges Baukastensystem mit klar abgestuften Ausstattungsniveaus.

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...

A Torx key is a tool for tightening and loosening screws with a star-shaped internal profile, the so-called six-lobe drive (ISO 10664). The profile consists of six evenly rounded points that resemble the cross-section of a star – hence the common name T-Star.

Der Begriff Tubeless (englisch für „schlauchlos") bezeichnet ein Reifensystem, bei dem kein separater Schlauch zwischen Reifen und Felge verwendet wird. Stattdessen dichtet der Reifen direkt auf der speziellen Tubeless-Felge ab. Eine Dichtmilch im Inneren des Reifens sorgt dafür, dass kleine Undichtigkeiten oder Einstiche automatisch verschlossen werden.

Ein Ventilkernentferner ist ein kleines Werkzeug, mit dem sich der Ventilkern – also der innere Verschlussmechanismus eines Fahrradventils – herausschrauben lässt. Er ist vor allem bei Tubeless-Systemen unverzichtbar, weil dort Dichtmilch durch das offene Ventil eingefüllt wird, ohne den Reifen zu demontieren.

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 kilowatt-hour (kWh) is a unit of measurement for energy . It indicates how much electrical energy is consumed or stored when a power output of one kilowatt (kW) is used for one hour . What exactly does kilowatt-hour mean?...

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...

Pedal force refers to the force that a rider transfers via the pedals to the crank of a bicycle or e-bike. It is the key factor for propulsion , as it is directly converted into torque at the crank and...

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 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...

A spring washer is a mechanical locking element used in bolted connections to prevent loosening due to vibrations, dynamic loads, or settling. It belongs to the group of locking washers and is frequently used in mechanical engineering, electrical engineering, and...