Shimano 105 R7100 Di2 Complete Disc Groupset

$2,795.00 $2,999.00
Delivery Available



This Shimano 105 Di2 groupset contains all of the necessary components needed to make the switch from mechanical to wireless electronic shifting. Combining the brand's renowned 105 series with ground-breaking Di2 technology, this model offers high-level performance at a more affordable price.

Celebrating its 40th anniversary since first introduced in 1982, Shimano 105 receives the ultimate upgrade with a move to Di2 electronic shifting technology. The highly anticipated Shimano 105 R7100 group not only delivers Di2 performance to an entirely new range of riders, but it offers Shimano’s flagship 12-speed, wireless shifting with easy operation and increased reliability in a more attainable package.


Digital Integrated Intelligence

The revolutionary DI2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. DI2 gives you instant, accurate, lightning-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With DI2, you are in complete control.

Shimano 105 R7170 Di2 Hydraulic 12 Speed Disc Brake

This hydraulic disc set is a perfect option for riders who want to upgrade their existing setup to wireless or those who want to make the switch from mechanical to electronic shifting for the first time. Offering high-level performance at a more affordable price, this set includes two of the ST-R7170 Dual Control Lever (DCL) and two of the BR-R7170 Flat Mount Brake Caliper, so you can experience the magic that Shimano 105 Di2 brings to the cycling industry.




  • Shifter/Brake Type: 2x ST-R7170 Dual Control Lever (DCL)
  • Caliper Type: 2x BR-R7170 Flat Mount Brake Caliper
  • Use: Road
  • Speed: 12 speed
  • Di2 Connectivity: Wireless Di2 shifting
  • Battery Type: CR1632 x 2
  • Brake Lever Clamp Band: 23.8 - 24.2mm
  • Number of Pistons: 2
  • Firmware Update by E-Tube Project: Yes
  • Single or Pair: Pair

Shimano 105 R7100 12 Speed Double Chainset

Perfect for pairing up with the rest of the Shimano 105 Di2 groupset, this 12 speed chainset comes kitted out with hollow aluminium crankarms for the best balance of durability, rigidity and low weight. Shimano has also put each crankarm through its anodising process for extra protection against wear and corrosion, making it ideal for enduring mile after mile of road, in all weather conditions. Another highlight is the resin ribs on the back of this model's chainrings, which use Shimano 105's unique structural design to achieve further weight savings and crisp shifting performance.


Crankarm Material: Hollow Aluminium with an Anodised finish
Use: Road
Speed: 12 speed
Spider/Gear Arms: 4
Q-factor: 148mm
Chainline: 44.5mm
PCD: 110mm
Chainring Size: 50/34T
Type: Double
Compatible Chain: HG 12 speed
Chainrings Included: Yes
Bottom Bracket Included: No, available separately
Technology: Hollowtech II, Hollowglide

Shimano 105 R7150 Di2 E-Tube Rear Derailleur

Part of Shimano's game-changing 7100 series, this 12 speed rear derailleur delivers faster, more accurate rear shifting with wireless Di2 connectivity. Benefitting from a more compact design that integrates the wireless unit, charging port and function button, you can easily check the battery level and Bluetooth/ANT pairing success with your cycle computer/smartphone/tablet. Offering a more personalised touch, this model also enables you to select your preferred shift mode and view adjustment mode information if you wish to tweak or tune your rear derailleur.


Use: Road
Rear Speed: 12 speed
Low Sprocket Max: 36T; Low Sprocket Min: 34T
Top Sprocket Max: 11T; Top Sprocket Min: 11T
Max Front Difference: 16T
Total Capacity: 41T; Pulley Teeth: 11
Charging Cable: EW-EC300
Connectivity: Bluetooth, ANT+
Di2 Connectivity: Yes
Firmware update by E-Tube Project: Yes
Compact design includes an integrated wireless unit, charger, and switch
LED status indicator
Battery indicator
Adjust mode
Wider range capacity
Max. low sprocket: 36T

Shimano 105 R7150 Di2 E-Tube Front Derailleur

Combining Shimano's prestigious Di2 wireless technology with its 105 series, this front derailleur is a perfect choice of upgrade for riders who have only experienced mechanical shifting and ergonomics previously. With its precise shifting operation merged together with a range of ride-enhancing technologies, this model is fully equipped for long days out on the road.

The Di2 wireless platform brings quick and smooth front shifts. And a choice of manual shifts or synchronised shifting assist modes such as Semi-Synchro or Full-Synchro which is a bit like having your own personal assistant.

In Semi-Synchro mode, the rear derailleur automatically adjusts to reduce big jumps in gear ratios allowing you to maintain your pace and rhythm. In Full-Synchro mode, the front and rear derailleurs work in perfect harmony to get you in the right gear at the right time, so you never have to worry about it. Slick communications with the rear derailleur combined with programmed chain guide control minimises chain drop. And top gear teeth capacity is 50-52T. It’s up to you how little or often you think about gear ratios!


Use: Road
Front Speed: 2 speed
Mount: Braze On
Chainline: 44.5mm
Chain Stay Angle: 61 - 66 degrees
Compatible Chain: HG 12 speed
Top Gear Teeth: 50-52T; Total Capacity: 16T
Link Bushings: 2
Down Swing: Yes
Firmware Update by E-Tube Project: Yes

Shimano 105 R7100 12 Speed Cassette

Part of Shimano's forward-thinking R7100 series, this road cassette comes kitted out with durable steel cogs and an aluminium spider for maximum strength and reliability. This 12 speed model also features an 11-34T ratio, which makes it ideal for everything from sprinting on the flat to climbing steep inclines on your road bike. Its refined 12-step gear combination also ensures excellent efficiency, so none of your effort is wasted. You’ll experience faster, smoother shifts under maximum torque (pedalling force) and shifts so smooth you’ll barely notice them, whether you're biking uphill, downhill or rolling on the flats. Compatible with both Shimano 11 and 12 speed freehub bodies, this cassette is a versatile choice of upgrade for conquering your next road journey.


Cogs Material: Steel
Spider Material: Aluminium
Speed: 12 Speed
Chain Compatibility: HG 12 speed
Freehub Compatibility: Shimano 11 and 12 speed freehub bodies
Tooth Count: 11-34T
Tooth Combination: 11-12-13-14-15-17-19-21-24-27-30-34T
Weight: 361g

Shimano Deore RT64 Disc Brake Rotor

Ready for hitting the trails, this hydraulic disc brake rotor is specifically designed for the rigours of MTB riding. Coming equipped with a robust stainless steel build, it offers maximum strength and reliability as you pedal across demanding terrain conditions at speed. Another highlight is its Centre Lock brake mount compatibility, which makes installation and removal quick and easy, thanks to the spline mount and lock ring design.

The Centre Lock System makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.


Rotor Material: Stainless Steel
Series: Deore M6000 Series
Use: Mountain Bike (MTB)
Brake Type: Hydraulic Disc Brake
Mount Type: Centre Lock
Brake Pad Compatibility: Resin/Metal pad compatible
Size: 140mm and 160mm
Single or Pair: Single
Powerful and consistent braking performance
Spline mount and lock ring design

Shimano CN-M7100 SLX/Road Chain with Quick Link

The M7100 chain provides enhanced chain retention thanks to an extended portion of the inner plate. The chain features quick-link assembly and SIL-TEC treatment for extended off-road durability.


Speed: 12-speed
Number of Links: 126
Quick Link: Yes

Shimano Battery, Charging Cable and Electric Wires

This groupset comes complete with a Shimano E-Tube SEIS Di2 battery, charging cable and EW-SD300 E-Tube Di2 Electric Wires.


E-Tube SEIS Di2 Battery, 7.4V Lithium-ion, 3-ports for SD300 wires, internal mount
EW-EC300 Charging Cable,1700mm
EW-SD300 E-Tube Di2 Electric Wire, 900mm
EW-SD300 E-Tube Di2 Electric Wire, 1200mm



Reach Adjust: This model's brake lever is equipped with a Reach Adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.

E-Tube Project: Shimano’s genuine application E-Tube Project Cyclist allows you to customise your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get the more detailed bike maintenance by connecting to your bike by wire with E-Tube Project Professional application.

Dual Control Lever: DCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from Shimano's MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration, and simply has to be experienced to be understood.

Ice Technologies: The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride, for instance, has a negative impact on the braking performance. Shimano has adopted the Ice Technologies piston to realise the cooling technology for consistent performance. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without loss. This model's Ice Technologies piston achieves optimised lightweight, high rigidity and heat dissipation.

One Way Bleeding: One Way Bleeding was developed for quick and easy prevention of air in the hydraulic system. Shimano has streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.

Hollowtech II Technology: Providing the best balance of stiffness, strength, weight and rotating performance, the concept of Hollowtech II technology is focused on producing a superior crankset that will maximise your power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances where you need to pedal more. Moreover, the Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.

Hollowglide Technology: This model features Hollowglide technology on its outer chainring. High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shifting.

Digital Integrated Intelligence: The revolutionary DI2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. DI2 gives you instant, accurate, lightning-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With DI2, you are in complete control.

E-Tube Project: Shimano’s E-Tube Project Cyclist application allows you to customise your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with the E-Tube Project Professional application.

E-Tube Ride: Shimano’s E-Tube Ride application allows you to visualize your ride with a route map to your destination, a real time ride data display, and ride record data on your smartphone while you are on your bike. You can also upload your ride log data to Strava.