Shimano road groupsets hiearchy

Shimano groupsets are offered in a wide range, from entry-level options to professional-grade electronic versions.

Shimano groupsets hiearchy

Group	Level
Shimano Dura-Ace Di2 – R9200 series	PRO
Shimano Dura-Ace – R9200 series	PRO
Shimano Ultegra Di2 – R8100 series	RACE
Shimano Ultegra – R8100 series	RACE
Shimano 105 Di2 – R7100 series	Race
Shimano 105 – R7100 series	Performance
Shimano Tiagra – 4700 series	Performance
Shimano Sora – R3000 series	Entry
Shimano Claris – R2000 series	Entry

Shimano Di2

Part of Shimano groupsets are marked as Di2. Di2 stands for “Digital Integrated Intelligence” – it’s Shimano’s electronic shifting system for road, gravel, and MTB groupsets. At its core, the Di2 system provides instantaneous and accurate gear changes with a simple press of a button. This eliminates the potential for missed shifts, chain rub, and the gradual degradation in performance associated with mechanical systems due to cable stretch and contamination. Once set up, the system maintains its precise adjustment, ensuring consistent and flawless shifting in all riding conditions.
Shimano first introduced Di2 to the market in 2009 with its top-tier Dura-Ace 7970 road groupset. The technology was initially met with some skepticism but quickly proved its worth in the demanding environment of professional racing.
More about SHIMANO category HERE!