Electronic Shifting Groupsets Compatible with Mechanical Brakes

Road Bikes

Shimano

Among Shimano’s current STI lever models, those compatible with electronic shifting (Di2) have model numbers ending in 50.
Note that hydraulic brake models add 20 to the last two digits. Therefore, models that combine “hydraulic brakes + Di2” end in 70 and are not included under the conditions discussed here.

For older generation models without an initial R in the model number, those ending in 70 represent Di2-compatible levers.

As for the 12-speed 105 series, only two types exist: “Di2 + hydraulic brake” and “mechanical shifting + hydraulic brake”.
Therefore, there is no combination of Di2 + mechanical brake in this series.

Campagnolo

Campagnolo’s electronic shifting system is called EPS.
The latest model, SUPER RECORD WIRELESS 12S, is exclusively for disc brakes,
but all previous EPS models offered both hydraulic and mechanical brake options.

SRAM

SRAM was the first in the industry to introduce a fully wireless electronic shifting system.
While its early road version was called eTap, newer models now use names like eTap AXS or simply AXS, shared with MTB groupsets.

Shimano models often include “HRD” in the model number for hydraulic brake versions.
If “HRD” is not present, the lever is likely a mechanical brake version, as both versions often share the same model name.

Notably, 12-speed eTap AXS levers have been updated to support 11-speed eTap derailleurs,
making them effectively compatible with both 11 and 12-speed systems.

For SRAM electronic shifting, 11-speed models are only available in the RED series.
FORCE and RIVAL electronic shifting models are available only in 12-speed.