Skip to content
Free Shipping & Returns*
Specialist Workshop Near You
Free Shipping & Returns*
Specialist Workshop Near You
Language

cassette

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 the drivetrain and works directly with the chain and derailleur.

Depending on the bike type and intended use, a cassette can have between 7 and 13 sprockets , with modern road bikes and mountain bikes often using 11- or 12-speed cassettes. The different sprocket sizes allow for different gear ratios — for light gears when climbing and heavy gears for flat or fast terrain.

The cassette is driven by the chain when you pedal, transferring power to the rear wheel. When you shift gears, the rear derailleur moves the chain from one sprocket to the other. For smooth operation, it's important that the cassette, chain, and rear derailleur are all coordinated.

👉 Note: The cassette is not to be confused with the screw ring, which is used on older bicycles and has a different mounting system.

Avinox drive

Published: March 18, 2025  |  Updated: March 18, 2025

  • E-Bike bei Arthrose: Warum Radfahren die Gelenke schont

    E-bikes for people with osteoarthritis: Why cycling is easy on the joints

    Around 5 million people in Germany suffer from osteoarthritis – and many of them believe that this means they can't do any sport. Running hurts, climbing stairs is agony, and intensive sports are completely out of the question. But most people overlook a form of exercise that orthopedists have been recommending for years: cycling. And with e-bikes, it's even more accessible.

    Read now
  • Fahrradinfrastruktur weltweit

    Cycling infrastructure worldwide: rules, rights and cycle paths in international comparison

    Do you dream of cycling through the flat polders of the Netherlands, crossing Copenhagen's bicycle bridges, or exploring the Australian coast on your e-bike? Then you should know beforehand: cycling isn't the same everywhere. Every country has its own infrastructure, its own laws – and sometimes even its own unique cycling culture. In this article, we'll take you on a tour around the globe and show you what to expect – including the most important rules for e-bikes and pedelecs.

    Read now