What’s the difference between SRAM road groupsets?

Photo of a SRAM Red lever

Like its main competitors Shimano and Campagnolo, SRAM has a hierarchy of groupsets with levels offering different weights, number of gears and – of course – prices!

Whilst Shimano and Campagnolo have been producing bike components since the 1920s and 30s, SRAM was only founded in 1987. However, although much younder it has become know for pioneering innovations such as 1x road drivetrains, wide-range cassettes, and wireless shifting.

I will try to keep this groupset list current, please give me a shout if I mess up!

Weight(g)BrakesRear sprockets*Chainrings Low sprocket max teeth**Electronic
RED eTap HRD2361Disc11232Y
RED eTap1750Rim11232Y
RED 22 HRD2119Disc11232N
RED 221741Rim11232N
Force 12466Disc11142N
Force HRDDisc11232N
Force 222097Rim11232N
Rival 12690Disc11142N
Rival HRDDisc11232N
Rival 222348Rim11232N
Apex 12719Disc11142N
Apex HRDDisc10232N
Apex2419Rim10232N

* the more spockets, the smaller the jump between adjacent gears.
** the more teeth, the easier the bottom gear will be.