SHIMANO R7100 105 DI2 DISC BRAKE GROUPSET

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.

Interface

SHIFT WITH ABSOLUTE EASE

Worry-Free Di2 Shifting in a Compact Size.

Never skip a shift as you fatigue or encounter an unexpected climb. Worry-free Di2 shifting and a compact shifter size keep you in control in any situation. The difference is made over the course of a ride, saving you energy with every gear change, allowing you to focus on the scenery, your effort, and your friends. The all-new lever shape brings comfort and control in every riding position.

Save energy and focus by quickly adapting to ever-changing conditions with a button press instead of many manual shifts.

Shifting is automatically completed at the touch of a switch, eliminating the need for the amount of stroke required for mechanical shifting. The rider can shift into the most appropriate gear at will, depending on the ever-changing conditions, speed, and road surface. This is a great advantage not only in the world of racing, but for all cyclists.

Drivetrain

A DRIVETRAIN FOR DIVERSE RIDERS

Helping You Meet the Road with 12-speed Gearing and Low-Climbing Ratios.

Here is the low gear that you've always wanted. SHIMANO 105's sub-1:1 ratio 12-speed range is a tool that lets riders take on steeper slopes and better control their effort along the way.

One-hand shifting that can be personalized to match your riding style.

Enjoy simple, one-hand control as the front derailleur is automatically kept in synchronization with the rear for consistently efficient pedaling and stress-free shifting. You can personalize it to match your riding style in the E-TUBE PROJECT app.

Disc brake system

Slowing Down Never Felt This Good

ACCESSIBLE, RACER-READY BRAKE SYSTEM.

With a new piston design, race-ready braking is now available for even more riders.

The new SHIMANO 105 braking system allows riders to progress in their cycling journey by learning the joys of braking and pushing their limits.

• ST-R7170-R SHIMANO 105 Di2 Hydraulic Disc Brake DUAL CONTROL LEVER (2x12-speed)
• ST-R7170-L SHIMANO 105 Di2 Hydraulic Disc Brake DUAL CONTROL LEVER (2x12-speed)
• CS-R7100-12 SHIMANO 105 12-speed Road Cassette Sprocket
• RD-R7150 SHIMANO 105 Di2 Rear Derailleur SHIMANO SHADOW RD 2x12-speed
• FD-R7150 SHIMANO 105 Di2 Front Derailleur 2x12-speed
• SM-RT70 SHIMANO CENTER LOCK Disc Brake Rotor ICE TECHNOLOGIES 203/180/160/140 mm
• FC-R7100 SHIMANO 105 HOLLOWTECH II Crankset 2x12-speed
• SM-BBR60 SHIMANO ULTEGRA Threaded Bottom Bracket 68/70 mm shell width 
• CN-M7100 SLX 12-Speed MTB Chain
• BT-DN300 SHIMANO Built-In Type Di2 Battery [SD300 Type]
• EW-EC300 SHIMANO Charging Connector