groupset

plural groupsets

1. cyclingA complete set of matching bicycle drive control components, including brake calipers, cranks, chainrings, bottom bracket, etc.

   The debate about the pros and cons of the groupset has simmered among cyclists since. The argument in favour is that components are manufactured to work efficiently together, while providing a unitary look to a bicycle.

   2011, Robert Penn, It's All About the Bike: The Pursuit of Happiness on Two Wheels, Bloomsbury, →ISBN, page 104

   1 more example

   The makeup of the groupset is another important factor in building a road bike. Groupset is a term for most of the other bits that make up your bicycle—the brakes, shifters, dérailleurs, rear cassette, bottom bracket, chain, cranks and possibly the headset, seatpost and hubs. These components are all lumped together because bicycle manufacturers buy them as a group from one supplier to ease their process of building your bike.

   2013, Gavin Wright, Ben Williams, Cycling For Dummies, John Wiley & Sons, →ISBN

   Synonyms: groupo, gruppo