The new SHIMANO 105 brings Di2 shifting to a new set of riders. For those who have only experienced mechanical shifting and ergonomics, SHIMANO 105 Di2 represents a transformation of the road cycling experience. With function and technologies inherited from DURA-ACE and ULTEGRA, SHIMANO 105 is the culmination of years of research and development. With a shared Di2 platform, sophisticated ergonomics, SHIMANO 105-optimized gear combinations, and an exceptional brake system, the new SHIMANO 105 marks a new era of affordable performance.

Details

• Features a refined interface and improved ergonomics
• 12-speed Di2 technology for unmatched efficiency
• Fast, precise, seamless shifting across the 12-speed cassette
• Compatible with user-friendly E-TUBE PROJECT App
• More fine-tuned control and heightened braking performance
• Shimano Shadow rear derailleur
• Integrated D-FLY connectivity
• Cassette is compatible with 11-speed freehub bodies, and features optimised “Sweet Spot” gears to enhance pedalling efficiency
• 50-34t chainrings

Groupset Includes:

• Shimano ST-R7170 shifters
• Shimano BR-R7170 flat mount calipers
• Shimano RD-R7150 rear derailleur, Di2
• Shimano FD-R7150 front derailleur, braze-on
• Shimano Hollowtech II FC-R7100 crankset, 50/34
• Shimano CS-R7100 105 12-speed cassette, 11-34
• Shimano BICYCLE CHAIN, CN-M6100, DEORE/105, 126 LINKS FOR 12-SPEED, W/ QUICK-LINK
• Shimano SM-RT70 Rotors (160mm & 140mm) - **contact us if you would like to upgrade or require different size**
• Shimano EW-EC300 charging cable, 1700mm
• 2 x EW-SD300 Di2 wires 
• Shimano BT-DN300 Di2 battery