The Shimano 105 R7150 Di2 groupset is perhaps—without exaggeration—the most hotly anticipated groupset of the century. Even in mechanical form, the 105 series is widely regarded as one of the most reliable and affordable performance groupsets, with the introduction of electronic the gap between the brand’s mid-tier range and its top-tier is now closer than ever. A Battery For The Ages: The introduction of wireless shifting might leave you feeling concerned you’ll be forever charging batteries and living in perpetual fear you’ll be stranded in you biggest gear miles from anywhere. But with 105 Di2, power is supplied via two CR1632 coin cell batteries in the shifters, which should provide over three years of life. With such a range, even the heaviest of users shouldn’t find themselves in a constant state of charging and re-charging batteries. Semi-wireless Setup: 105 R7150 uses the same semi-wireless, 12-speed shifting setup as the top-tier models. The proprietary semi-wireless system means there is no longer any need from wires to the shifters to the derailleurs. Since there’s no need for wires and cables, the cockpit of a bike set up with 105 Di2 is cleaner and less cluttered than ever. Shift Into Gear: Of course with the change to electronic gearing, one of the most significant changes to the groupset is in the shifters themselves; the all-new 105 ST-R7170 levers now operate in much the same way as the top-of-the-line shifters. Shifting gear couldn’t be simpler: click a button on the shifter and almost instantly you’ll hear the derailleur whir into life. Drawing on Shimano’s years of experience in electronic shifting, you can expect smooth gear changes at the touch of a button. Without the need to accommodate levers, wires, or ports, the shape of the R7150’s levers has been brought more in line with the sleeker Ultegra and Dura-Ace shifters. The new, slimmed down, STI levers are also more ergonomically shaped, thanks to the raised hood peak and offer more opportunity to refine the reach. The Brains Of The Operation: Another significant change to previous mechanical setup is in the front and rear derailleurs. The rear derailleur is an integrated, 12-speed wireless unit, which will comfortably accommodate an 11–36T cassette. Such a wide range of gears is perfect for those big climbing days, without spinning out when the road tips back down or when you’re racing along in fast bunch rides. The rear mech uses Shimano’s Shadow technology is incorporated to reduce the risk of the derailleur hitting the chainstay in rough-riding conditions, and to provide smoother, quieter performance. The 105 Di2 front derailleur offers the smooth shifting you’d expect from the Japanese component makers. It can be programmed to be manual, or full or semi-synchronised, accommodating a 50T or 52T chainring. Crank It Up: Shimano continue to deploy their famed Hollowtech II technology in the R7100 crankset, which is now 2x12-speed. This is the same technology they have employed in the 105 range for years, and features also in the company’s premium lines. The result is a sturdy crankset, that is stiff and relatively light. Incorporated also is Hollowglide technology, which offers more precise and efficient power transfer than ever before. Shimano have been able to reduce the weight of the crankset but maintain stiffness, strength, and performance. For 105 Di2, cranksets are available as a compact (50-34 tooth) and in crank-arm lengths of 170, 172.5 and 175mm Stopping Performance: The 105 hydraulic disc brakes of the previous iteration were highly capable; for the latest ST-R7170, Shimano have further improved braking performance. The lever-action required for braking is now lighter and smoother, offering a greater area for braking control. For 105 Di2, the clearance for pads has been increased by 10%, reducing braking noise. Overall, rain or shine, you can be assured of high-performance stopping power. Included: Left and Right Shifters (ST-R7170) Flat Mount Brake Calipers (BR-R7170) Chainset (FC-R7100) (50-34T) Cassette (CS-R7100-12) (11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30, 34T) Front Derailleur (FD-R7150) Rear Derailleur (RD-R7150) Rotors (SM-RT70) Di2 Battery (BT-DN300) Blog - Shimano 105 Di2 is here - Electronic Shifting for the Masses
Shimano 105 R7100 Di2 Complete Disc GroupsetCombining Shimano's revolutionary Di2 technology with its popular 105 groupset, this model offers top-level performance at a more affordable price. Coming equipped with all of the necessary components needed to make the switch from mechanical to wireless electronic shifting, this groupset delivers 12 speed shifting and wireless performance to more riders.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 IntelligenceThe 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 BrakeThis 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.Features: 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: PairShimano 105 R7100 12 Speed Double ChainsetThis 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.Features: 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, HollowglideShimano 105 R7150 Di2 E-Tube Rear DerailleurThis 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.Features: 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 Pairing Adjust mode Wider range capacityShimano 105 R7150 Di2 E-Tube Front DerailleurWith 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!Features: 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: YesShimano 105 R7100 12 Speed CassetteThis 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.Features: 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: 361gShimano Deore RT64 Disc Brake RotorReady for clocking up the miles, this hydraulic disc brake rotor is specifically designed for the demands of modern road cycling. Coming equipped with a robust stainless steel build, it offers maximum strength and reliability. 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.Features: Rotor Material: Stainless Steel Series: Deore M6000 Series Use: Road Brake Type: Hydraulic Disc Brake Mount Type: Centre Lock Brake Pad Compatibility: Resin/Metal pad compatible Size: 140mm and 160mm Single or Pair: Pair Powerful and consistent braking performance Spline mount and lock ring designShimano CN-M7100 SLX/Road Chain with Quick LinkThe 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.Features: Speed: 12 speed Number of Links: 126 Quick Link: YesShimano Battery, Charging Cable and Electric WiresThis groupset comes complete with a Shimano E-Tube SEIS Di2 battery, charging cable and EW-SD300 E-Tube Di2 Electric Wires.Features: 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, 1200mmTechnologies: 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.Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Supreme Aerodynamic Performance Advantage The 40mm rim depth and profile provide a supreme aerodynamic advantage in terms of speed and stability while being exceptionally stiff. The wide rim internals provides an optimised tyre profile when using wider tyres, specifically 28mm tyres. This increased rim width provides the perfect tyre profile/shape to create greater contact patch with the ground, increasing speed, grip and adding an aerodynamic benefit. Stiffness, Stability and Highest Levels of Performance Equipped with straight-pull, stainless steel bladed spokes, laced with Shimano cold-forged aluminium hum front and rear. This wheel is designed to roll on 12mm thru-axles to increase stiffness, stability and safety to even higher levels of performance; this wheelset is perfect for Racing, Endurance days in the saddle, training or exploring new routes in the hills.
The new Shimano 105 R7100 Di2 Groupset is ideal for those looking to upgrade from mechanical to an electronic drivetrain. Enjoy the benefits of electronic shifting with a high-level performance to price ratio!The groupset bundle includes all the necessary parts and components to upgrade your ride, including:Shimano 105 R7170 Di2 Hydraulic 12 Speed Shifters/Brake Levers,Shimano 105 R7100 12 Speed Double Chainset,Shimano 105 R7150 Di2 Front Derailleur,Shimano 105 R7150 Di2 Rear Derailleur,Shimano 105 R7100 11-34T 12 Speed Cassette,Shimano 105 Disc Brake Callipers and SMRT70 Rotors,Shimano CN-M7100 SLX/Road Chain with Quick Link,Shimano EW-EC300 1700mm Charging Cable,Shimano EW-SD300 E-Tube 900mm Di2 Electric Wire and Shimano EW-SD300 E-Tube 1200mm Di2 Electric Wire,Shimano E-Tube SEIS 7.4V Lithium-ion Di2 Battery.Hydraulic Disc Brake DUAL CONTROL LEVER (2x12-speed)Refined with pro feedback, the all-new dual control wireless lever brings more control and unparalleled ergonomics including a raised hood peak and a smoother, lighter lever action. Its reach adjust mechanism means the distance from the handlebar grip to the lever can be adjusted to suit any hand size or riding style. Plus the braking area has been expanded to offer more control while braking.HOLLOWTECH II Crankset (2x12-speed 50-34T)HOLLOWTECH II structure cuts weights yet maintains stiffness, strength and performance. What’s more, the crank arm length starts at 160mm so smaller riders can benefit from SHIMANO’s legendary shifting.Rear Derailleur (12-speed)Experience faster, more accurate rear shifting with wireless Di2. A more compact design integrates the wireless unit, charging port and function button. You can check the battery level and Bluetooth/ANT pairing success with your cycle computer/smartphone/tablet. Plus select your preferred shift mode and view adjustment mode information (if you wish to tweak or tune your rear derailleur).Front Derailleur (2x12-speed)The new Di2 wireless platform brings quick and smooth front shifts. And a choice of manual shifts or synchronised shifting assist modes – 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!Cassette Sprocket (11-34T/12-speed)The refined 12-step gear combination 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 biking uphill, downhill or rolling on the flats.Flat Mount - Hydraulic Disc Brake CalliperThe all-new hydraulic disc brake calliper enjoys 10% wider pad clearance than mechanical 105 – meaning less brake rub so less noise. It also brings a simpler, maintenance-friendly brake fluid bleeding process.