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Shimano 105 R7170 12 Speed Di2 Hydraulic Brake Groupset

Shimano 105 R7170 12 Speed Di2 Hydraulic Brake Groupset

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* Price does not include installation service.  


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.

What's Included in this Groupset

FC-R7100 105 2x12 Speed Crankset
ST-R7170 Di2 Shifter/Brake Lever/Brake Caliper Set
FD-R7150 Front Deraileur
RD-R7150 Rear Deraileur
CS-R7101 12 Speed Cassette 11-34T
CN-M7100 105 12 Speed Chain 116 Links
SM-RT70 Rotor 140 & 160mm, External Serration
BT-DN300 Internal Battery
EW-EC300 Charging Cable
EW-SD300-I Di2 WIres (Internal Only) 1x900 & 1x1200mm
Bottom Bracket Not Included

FC-R7100 HOLLOWTECH II Crankset 2x12-speed 

An attractive aluminum crank with hollow arms for lightweight, rigidity, and durability

The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.
52-36 and 50-34 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.

CS-R7101 HYPERGLIDE+ Cassette Sprocket (12-speed)

A 12-speed cassette range that brings versatility to any rider or road

From sprinting on the flats to climbing steep inclines, the 11-34T cassette has you covered. It is compatible with both SHIMANO 11-speed and 12-speed FREEHUB bodies.

RD-R7150 Rear Derailleur with SHIMANO SHADOW RD

A new level of performance for SHIMANO 12-speed road rear derailleurs

Wide 36T-compatible 12-speed Di2 rear derailleur. Receiving the wireless shifting signal from the shift lever, the SHIMANO 105 rear derailleur completes a shift in the blink of an eye with its high-performance motor and optimized link structure. This is the hub of the Di2 system, with the charging port, indicator LEDs, adjustment switches and more integrated into a compact package. A low-profile design reduces damage from contact and falls.

Compact design includes an integrated wireless unit, charger, switch
LED status indicator
Battery indicator
Adjust mode, etc.
Wider range capacity
Max. low sprocket: 36T

FD-R7150 Front Derailleur

Di2 brings precise, coordinated front shifting to SHIMANO 105

SHIMANO Di2 electronic shifting lets you change from the big to small chainrings, or vice versa, whenever you like while minimizing the risk of a dropped chain. Similarly, you can perform rear shifts without the need to trim the front derailleur to avoid chain rub. Full- and semi-synchronized shifting functions can be selected using the E-TUBE app. With digitally accurate electronic shifts and coordinated communication between shifters and derailleurs, the new SHIMANO 105 front derailleur offers the best shifting you've ever experienced.

ST-R7170 Hydraulic Disc Brake DUAL CONTROL LEVER (2x12-speed)

Worry-free Di2 shifting in a compact shifter size

The new SHIMANO 105 shift/brake lever features Di2 electronic shifting for the first time, bringing precise, intuitive gear changes to even more riders. Reach adjustment and customized button functions allow you to dial in your ideal ergonomics.

Clean cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast
Longer lasting. Uses two CR1632 batteries (battery life: 3.5 to 4 years)
Compact, ergonomic performance cascaded from DURA-ACE
Raised hood peak improves ergonomics, while a longer hood body increases hand support
Make DURA-ACE yours with custom button function and adjustable ergonomics
Easily change button function with the E-TUBE app
Find your optimum lever position with simple reach adjust

BR-R7170 Hydraulic Disc Brake Caliper


Disc brakes optimized for road riding

With proven hydraulic braking technology, the new SHIMANO 105 calipers feature the SHIMANO Flat Mount System and its low-profile design that is ideal for road bikes. More compact and lighter than ever, the R7170 brakes offer wide pad clearance for easy wheel removal and quiet performance as well as one-way bleeding for easy, clean maintenance.

10% wider pad clearance decreases the chance of disc brake rotor rub
Maintenance-friendly bleeding process

RT-RT700 Disc Brake Rotor


SLX - CENTER LOCK - Disc Brake Rotor - ICE TECHNOLOGIES - 203/180/160/140 mm

SLX disc brake rotors deliver powerful and consistent brake performance for all riding conditions. The ICE TECHNOLOGIES FREEZA rotor significantly reduces heat build-up in the brake system to ensure consistent high performance braking even on the steepest downhill stretches. SHIMANO's CENTER LOCK mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design.

Crisp, consistent braking anytime you need to slow down thanks to the frigid power of ICE TECHNOLOGIES
Better heat radiation
Stainless steel/Aluminum/Stainless steel 3-layer sandwich structure