Shimano 105 Di2 R7170 2x12 Groupset

The wait is over: Shimano’s legendary 105 groupset now comes with Di2 wireless shifting and a 12-speed drivetrain, giving ambitious riders pro-level technology and performance at an unbeatable price. At Bike Clinique, we’re fully manufacturer-trained and have extensive experience fitting Shimano Di2 systems, so you get a flawless install, precise tuning, and ongoing support—no stress, just results.

Why Choose Shimano 105 Di2 R7170 at Bike Clinique?
Shimano 105 Di2 R7170 brings you the same wireless tech, smooth shifting, and reliability as Dura-Ace and Ultegra—without compromise. The 12-speed gear range means more options for big climbs and fast descents, and the hydraulic disc brakes deliver powerful, modulated stopping in any conditions. Ergonomics, shifting logic, and braking power are all dialled for real-world performance and comfort.

What’s Included:

• Shifters/Brakes: 105 Di2 ST-R7170 dual-control levers with BR-R7170 flat-mount calipers. Wireless, customisable via Shimano E-Tube app, with powerful, precise braking and adjustable reach.

• Rotors: Ultegra RT-CL800 Center Lock, 160mm front and rear, with Ice-Tech cooling for consistent, fade-free stopping.

• Crankset: 105 FC-R7100, 2x12-speed, 50-34T chainrings, 170mm crank length. Hollowtech II arms for stiffness and low weight.

• Front Derailleur: 105 Di2 FD-R7150, wireless, auto-trim for perfect, silent shifts.

• Rear Derailleur: 105 Di2 RD-R7150, wireless, lightning-fast, compatible with 11-34T or 11-36T cassettes.

• Cassette: 105 CS-R7100, 12-speed, 11-34T or 11-36T, Hyperglide+ for quiet, seamless shifting.

• Chain: 105/GRX/SLX CN-M7100, 12-speed, 116 links, with chain lock and SIL-TEC coating for smooth, long-lasting performance.

• Battery & Charging: BT-DN300 internal battery (hidden in seatpost or steerer), E-Tube internal cabling (EW-SD300-I), and EW-EC300 charging cable for easy in-bike recharging.

Specs at a Glance:

• 2x12-speed (wireless electronic)

• Crank Length: 160, 165,170mm, 172.5, 175 

• Chainring: 50-34T or 52-36

• Cassette: 11-34T or 11-36T

• Brake: Hydraulic disc, flat mount, 160mm rotors

• Freehub: Shimano 11/12-speed Road

• Battery Life: ~2000km per charge

• Color: Black, silver

• Weight: ~2889g (ready to ride)

How Does It Ride?
Shimano 105 Di2 R7170 is all about effortless, precise shifting, powerful braking, and a cockpit that’s clean, quiet, and fully customisable. The drivetrain is smooth and silent, the gear range is perfect for everything from long climbs to fast sprints, and the braking gives you total confidence on any descent. Riders love the intuitive controls, the refined ergonomics, and the reliability that comes with a pro-level install.

Why Trust Bike Clinique?
With full Shimano manufacturer training and years of hands-on experience, you get expert advice, a perfect install, and ongoing support. We’ll check your frame compatibility, talk through gearing and setup options, and provide a clear estimate before any work begins.

Ready to upgrade your ride with 105 Di2?
Book a consultation, schedule your upgrade online, or call us on 07951125843. Pop into our Wimbledon workshop for a demo, get honest, jargon-free advice, and let us help you unlock the best of Shimano 105 for your next ride.