Shimano 105 R7170 12 Speed Di2 Hydraulic Disc Electronic Group
The Groupset of the People goes Electronic. For the first time, Shimano brings the flawless precision of Di2 electronic shifting to the legendary 105 series. The R7170 Groupset delivers the lightning-fast, customizable, and reliable performance of Dura-Ace and Ultegra in a truly accessible package, redefining performance for every serious road cyclist.
This is the ultimate upgrade for any rider looking to escape the fatigue and imprecision of mechanical shifting.
Flawless Shifting, Guaranteed Performance
The 105 R7170 groupset is built on Shimano’s latest 12-speed platform, delivering quick, accurate shifts that are indistinguishable from its more expensive siblings.
- Semi-Wireless Cockpit: The shifters communicate wirelessly to the rear derailleur, cleaning up your cockpit and simplifying routing. Power to the derailleurs comes from a single, reliable internal battery, ensuring consistent performance for thousands of kilometers.
- Digital Integrated Intelligence (Di2): Experience shifts that are significantly faster in both the front and rear compared to previous wired systems. Say goodbye to cable stretch and missed shifts forever.
- Optimized 12-Speed Gearing: Designed to give you the gear you need, whether sprinting or climbing. With cassette options including the mountain-friendly 11-36T, you get sub 1:1 gear ratios that make any ascent manageable.
Confidence-Inspiring Hydraulic Disc Brakes
The ST-R7170 Hydraulic Disc Brake Levers are ergonomically refined, featuring a taller hood peak for a more secure and comfortable hand position across all riding styles.
- Enhanced Control: The hydraulic calipers offer a lighter, smoother lever action with a refined initial bite point, allowing for precise speed modulation and confidence on steep or wet descents.
- Quieter Operation: The caliper design includes 10% wider pad clearance, drastically reducing the chance of brake rub and noise, keeping your ride silent and smooth.
Customization and Connectivity
The 105 Di2 groupset is not just smart—it's personalized.
- E-TUBE PROJECT App: Connect wirelessly via Bluetooth to your smartphone to customize shift speed, change button functions, and activate advanced Synchronized or Semi-Synchronized shifting modes.
- Battery Life: The shifters utilize long-life coin cell batteries (3+ years), and the main internal battery is charged easily via a magnetic port on the rear derailleur.
The Shimano 105 R7170 Di2 Groupset delivers a top-tier riding experience by bringing flagship technology down to the most widely used performance tier. It is the perfect blend of speed, reliability, and value.
Typical Group Contents:
Shimano 105 Di2 Rear Derailleur (RD-R7150)
Shimano 105 Di2 Front Derailleur (FD-R7150)
Pair Shimano 105 Di2 (ST-R7170) Hydraulic Shift/Brake Levers, right & left
Shimano 105 Hydraulic Disc Brake Calipers with Pre-bled Hoses, (BR-R7170), Flat Mount, Front & Rear
Shimano Di2 Internal Battery (BT-DN300)
2 x Shimano Di2 Wires (EW-SD300)
Shimano 105 Crankset
Bottom Bracket
Shimano 105 Cassette (CS-R7100)
Shimano Chain (CN-M7100)
Shimano EW-EC300 Charging Cable
OPTIONAL:
Rotors
