What is a bike's groupset?

The groupset (sometimes referred to as its "gruppo") is the collection of all the parts involved in braking, shifting gears, and transferring power from the pedals to the rear wheel (the drivetrain).

These components include:

  • Gear/brake levers
  • Brake calipers
  • Front and rear derailleurs
  • Chainset
  • Bottom bracket
  • Chain
  • Cassette

 The groupset market is dominated by 3 companies, each with their own hierarchy of groupset products:

  • Shimano - Claris, Sora, Tiagra, 105, Ultegra, Dura Ace
  • Campagnolo -  Centaur, Potenza, Chorus, Record, Super Record
  • SRAM - Apex, Rival, Force, Red