The center-pull brake is a type of bicycle brake used to slow down the bicycle. It is also known as a "rim brake" or "V-brake" and is one of the most commonly used brakes on bicycles. How does a center-pull...

Chainsuck (auch Kettenklemmen oder Kettenhaken genannt) bezeichnet ein technisches Problem, bei dem die Fahrradkette beim Schalten auf ein kleineres Kettenblatt nicht sauber abfällt, sondern zwischen Kettenblatt und Tretlagergehäuse mit nach oben gezogen wird und sich dort verklemmt.

What is a derailleur? A derailleur is a system that allows a cyclist to regulate the relationship between power and speed. This system consists of a chain placed between different sprockets on the crank and cassettes on the rear wheel....

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"...

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...

What is Enviolo? Enviolo is a brand that specializes in the design and manufacture of continuously variable transmission systems for bicycles. These innovative transmissions allow cyclists to adjust the gear ratio smoothly and without fixed shift steps. Unlike traditional gear...

A bicycle's frame number is a unique identification number stamped or engraved into the bicycle frame. This number serves several purposes and is comparable to a car's Vehicle Identification Number (VIN). Here is some important information about the frame number:...

The freewheel is a mechanism on the rear hub of a bicycle that allows the cyclist to rest the pedals in certain situations without the crank and thus the rear wheel turning. The freewheel helps make cycling more efficient and...

What is a "French valve"? The "French valve", also known as "Sclaverand valve" or "Presta valve", is a type of valve commonly used in bicycle tires. It is named after its inventor, the French cyclist and valve manufacturer René Sclaverand...

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...

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.

Pinion MGU is a special gearbox technology developed by the German company Pinion. MGU stands for "Modular Gear Unit" and refers to a series of gearboxes especially designed for bicycles. This technology is known for its reliability, low maintenance and...

The Q-factor is a measure of the width of the pedal spacing on a bicycle. It refers to the horizontal distance between the crank arms that support the pedals. The further apart the cranks are, the higher the Q-factor. Properties...

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...

What is suspension travel? Suspension travel refers to the depth of the suspension that absorbs bumps on the road. This is especially important for mountain bikes. Suspension travel is measured in millimeters (mm) and varies depending on the type of...

What is a trapezoidal frame? A trapezoidal frame is a type of bicycle frame that gets its name from its trapezoidal shape. The frame consists of two parallel top tubes that are connected at the rear by the seat tube...

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...

What is traction assistance? A starting aid is a technological support that is mainly found on e-bikes and pedelecs. Its main purpose is to make starting easier by allowing the rider to set the bike in motion with just a...