Shimano 105 Di2 7100 12s Disc RT70 group

Shimano 105 Di2 12-Speed Groupset

Electronic shifting. Elevated performance. New riding experience.

The new Shimano 105 brings Di2 electronic shifting to a wider range of riders. For those who have only experienced mechanical systems, Shimano 105 Di2 represents a true transformation of the road cycling experience — delivering precision, speed and modern ergonomics in every shift.

Next-Level Shifting

• Fully electronic Di2 shifting system

• Fast, precise and reliable gear changes

• Minimal effort with maximum efficiency

• Optimised ergonomics for long rides

Braking Performance

Confidence in every condition

• Hydraulic disc brakes for powerful stopping

• Excellent modulation and control

• Supplied pre-filled with mineral oil

• Brake pads pre-installed and ready to use

What’s Included

• Shimano 105 CS-R7100-12 12-speed cassette

• Shimano 105 FC-R7100 crankset

• Shimano 105 Di2 12-speed group components

• Shimano CN-M7100 12-speed chain

• Rear derailleur: Shimano 105 Di2 RD-R7150 (12s)

• Front derailleur: Shimano 105 Di2 FD-R7150 (2x12s, weld-on)

• Brake/shift levers: Shimano 105 ST-R7170 (disc)

• Brake calipers: BR-R7170 (2x12s)

• Disc rotors:

  • Shimano SM-RT70 140 mm

  • Shimano SM-RT70 160 mm

• Shimano Di2 cable routing components

• Shimano BT-DN300 internal battery

• USB Type-A charging cable EW-EC300

• 2 × EW-SD300 Di2 electronic cables

Key Benefits

• Entry into Shimano Di2 electronic shifting

• Smooth, consistent and accurate gear changes

• Reliable hydraulic braking system

• Complete ready-to-install groupset

• Ideal upgrade from mechanical drivetrains

Shimano 105 FC-R7100 crankset

Shimano 105 12S cassette