Shimano 105 R7170 Di2 Disc Groupset – 12 Speed

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
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
Here is the low gear that you’ve always wanted. SHIMANO 105’s sub 1:1 ratio 12-speed range lets you take on steeper slopes and better control your 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
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.

Groupset Includes:

• Chainset: Shimano 105 FC-R7100 with a choice of rings and crank lengths
• Disc Brakes/Gear Levers: Shimano 105 Di2 ST-R7170 Hydraulic disc brakes
• Front Derailleur: Shimano 105 Di2 FD-R7150
• Rear Derailleur: Shimano 105 Di2 RD-R7150
• Cassette: Shimano Shimano 105 CS-R7100 (Choice Of Ratio’s)
• Chain: Shimano – 12 speed
• Di2 Parts: Battery, Charging cable and two Di2 cables.
• Rotors: SMRT70S – SM-RT70 Ice Tech Centre Lock disc rotor 160mm

When ordering please specify crank length and ratio and cassette ratio.