The EPS rear derailleur is comprised mainly of a mechanical structure, derived from the mechanical gear and composed of a derailleur rod/parallelogram/derailleur cage, of a worm screw enabled by an electronic actuator. As with the derailleur, the electronic rear derailleur actuator is composed of a gear motor and a sensor, the built-in resolver, that reads its movements. The geometry of the parallelogram has been made more rigid and optimised to promote interaction with the electronic parts. The lower and upper bodies, the parallelogram and the carbon derailleur cage are moved by a screw system and lead worm screw (not a spring screw) which, in turn, is enabled by the electronic actuator that communicates with the DTI. The built-in resolver inside the actuator is capable of reading the movements of the rear derailleur at any time and optimising its position by communicating with the DTI (Digital Tech Intelligence). The rear derailleur is also equipped with a play recovery system using a helicoidal spring that optimises stability and precision and keeps operation and performance constant over time, even after many kms have been covered. As with the mechanical rear derailleur, it is possible to optimise its position with respect to the frame and chain by acting on two adjusting screws: the screw that adjusts the mechanical end stop and the screw that adjusts the distance between the upper pulley and sprockets. By using these screws it is possible to optimise the installation of the rear derailleur and increase the precision of its operation. DTI: Digital Tech Intelligence is housed inside the Power Unit and it continuously monitors the signals that arrive from all the EPS components, thus managing their operation. Multi-Shifting: There are no longer any limits to Multi-shifting and the choice is at the fingertips of the cyclist. Ride Back Home: The uncoupling mechanism of the rear derailleur is useful if the battery runs out on the road, allowing you to manually uncouple the rear derailleur to position it on which ever sprocket you require. Water Proof: In order to achieve the IP67 classification, all the electronic components of the EPS system underwent a series of tests, which proved their ability to function perfectly under one meter of water for at least 30 minutes.
The SRAM GX Eagle Boost groupset contains everything you need to breathe new life into your existing ride as well as complete your dream bike build. SRAM has included a GX Eagle Boost crankset that's described as its best aluminium model yet. Coming equipped with an Eagle cassette, trigger shifter and rear derailleur, this groupset provides super-smooth shifting operation and uses some of the best technologies available from SRAM. Another highlight is its powerlock chain that delivers better chain-guiding and increased longevity. Ready to hit the trails, it's completed with a chaingap tool for easy adjustment of the derailleur and chain. SRAM GX Eagle 12 Speed Boost DUB Chainset Described by the brand as their best aluminium crankset, this model uses its tough construction to handle all the intensity that comes with blasting across the mountain bike trails at speed. SRAM has also equipped this model with its renowned X-SYNC 2 tooth profile chainring for consistent performance on the toughest rides. Each tooth's thickness is toleranced and controlled to work seamlessly with the chain's inner and outer links. Another benefit is its DUB technology, which uses its patented spindle design to provide superior sealing as well as forward and backward compatibility. - SRAM's best aluminium crankset - Direct mount interface compatible with chainrings across the entire Eagle Ecosystem - Master GX colourway as part of Eagle Colour system – the colours match with all cassettes and chains Features: Material: Aluminium Use: MTB Crank Arm Length: Separate 170mm and 175mm options Bottom Bracket Spindle Interface: DUB (bottom bracket sold separately) Guard: No guard Bolt Circle Diameter (BCD): Direct Mount Speed: 12-Speed Chainline Spacing: 52.0mm Boost Chainring Size: 32T SRAM XG-1275 Eagle 12 Speed Cassette This 12 speed MTB cassette features a tough aluminium inner and outer cage construction, which allows it to handle all the hits that come with weaving between the trails. SRAM has equipped this model with a huge 520 percent gear range that utilises the industry-standard XD hub driver. This allows riders to enjoy greater flexibility when both climbing and descending. Coming equipped with Full Pin technology, that's similar to the renowned X-Dome technology, this cassette uses its open design to shed mud and give riders crisp shifting on every ride. - 520-percent gear range utilising the industry-standard XD™ hub driver - Light and strong FULL PIN™ technology similar to X-DOME™ bringing true 1x gear range to more riders and builds Features: Material: Cage: Aluminium; Cogs: Steel Use: MTB Speed: 12 speed Technology: XG Freehub Compatibility: SRAM XD types Gear Ratio: 10-52T Cog Sizes: 10-52T: 10,12,14,16,18,21,24,28,32,36,42,52 SRAM GX Eagle 12 Speed Rear Derailleur Designed for versatility, this MTB rear shifter features a robust aluminium inner and outer cage construction, which makes it more than ready to tackle whatever the off-road has to offer. SRAM has also equipped this version with steel pulley bearings for additional durability on every ride. Developed around a backwards-compatible profile, this model works with both 10-50T and 10-52T cassettes for greater flexibility. Another benefit is its updated cage design that delivers greater chain retention than before and even more precise shifts, as you weave between the trails. Coming complete with a number of different colour options, this is rear mech looks as amazing as it performs on your mountain bike. - Backwards compatible, works with both 10-50t and 10-52t cassettes - Updated cage architecture provides better chain retention and precise shifts - Comes in GX Eagle™ master colourway as part of Eagle™ Coloursystem and goes with all colours of Eagle cassettes & chains Features: Material: Cage: Aluminium; Pulley Bearings: Steel Use: MTB, Cross-Country and Enduro Mount: Standard Speed: 12-Speed Type: Rear derailleur Cage Type: Long Max Tooth: 52T Cable Pull Ratio: X-Actuation Single or Pair: Single SRAM GX Eagle 12 Speed Powerlock Chain The GX Eagle chain is designed with SRAM Eagle geometry, the GX Eagle chain features solid pin construction, Eagle PowerLock and smooth, efficient shifting that you can count on every time out. - Only Eagle is a complete system-engineered drivetrain designed, tested and proven to deliver the lightest, highest-performing, most durable system for all riders on any trail. - Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. - Compatible with all levels of Eagle drivetrain systems - Groundbreaking new chain design and technology - The Eagle chain has been completely re-engineered and is produced with new manufacturing technology. - All-new Eagle PowerLock chain connector with FLOW LINK technology provides better chain-guiding and increased longevity - Unique features and design also provide significantly improved wear resistance on Eagle cassettes and rings Features: Speed: 12-Speed Chain Length: 126 links Chain Connector: PowerLock Inner Link Finish: Black Oxide Outer Link Finish: Nickel Pin Variant: Solid Pin Pin Treatment: Chrome Hardened SRAM GX Eagle 12 Speed Trigger Shifter The challenges of riding a mountain bike should be kept to roots, rocks, mud, trees, jumps, drops and breathing. Putting total control of your gear selection into the thumb of one hand, it is simple to find the right gear, right now. The GX Eagle™ trigger shifter is the control center of the Eagle™ drivetrain. Its internal works have been updated to include a 12th gear, and improved to enhance trigger feel, precision and durability. Features: Speed: 12-Speed Cable Pull Ratio: X-Actuation Cable Length: (SL) 2200mm Shifter Type: Trigger Matchmaker Compatible: Yes (Mount sold separately) Clamp Included: Yes Max Upshifts: 5 SRAM Chaingap Tool SRAM tool for correct adjustment of the derailleur and chain. Groupset Technologies: Eagle: Eagle technology represents SRAM's latest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features updated 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 500%, while is equal to 2x11 drivetrains. Manufacturer Part Numbers: 170mm: SGS8095000 175mm: SGS8095001
Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DZero DUB Power Meter is paired with the Quarq DUB Crankarms and SRAM’s X-Glide 52/36t chainrings to have the perfect fit for most 10- or 11- speed groupsets. A SRAM DUB Bottom Bracket will be required for installation. Features: Bluetooth low energy technology and ANT+ wireless data transfer MagicZero - automatically checks and recalibrates your power meter as you ride – no need to manually calibrate AxCad -- no cadence magnet required 10K Temperature Compensation Battery -- CR2032, 200-hour battery life, change without tools OmniCal -- swap chainrings without affecting accuracy 2-year warranty IPX7 waterproof rating Accuracy -- within 1.5%, measuring both legs.
Equipped with X-Range technology, every shift is efficiently smooth and impressively quick, letting you find the right gear for the route ahead in an instant. Comprising of a supportive and sturdy carbon crankarm and smaller aluminium chainrings, it minimises weight while adding new gearing configurations for improved pedalling cadence and power. Suitable for most common frames with its DUB design, this chainset is fit for any challenge.
The Campagnolo Super Record EPS 12-Speed Front Derailleur is an integral part of the new group, providing slick, electronic shifting and smoother performance at a race-ready weight.Ultra-lightweight technopolymer body is reinforced with UD carbon fibre to provide a light, stiff constructionMagnetic Sensor ensures the chain is always in optimum position for the selected gearHigh torque motors for incredible shifting, even under the highest of loadsThe Super Record EPS 12-Speed Rear Derailleur has an innovative shape that envelopes the sprockets better thanks to a Magnetic Sensor. This allows the chain to maintain optimum chain line at all times, thus increasing the speed, power and precision of shifting while ensuring that the derailleur is always kept an optimal distance away from the chainrings.The cage has also been optimised to work smoothly even when cross-chained, while the derailleur is made of carbon fibre-reinforced techno-polymer, contributing to its robustness and lightness. The design is also compatible with both disc brakes and rim brakes, unlike previous Campagnolo groupsets. Lightweight, versatile and simply a joy to behold, the Campagnolo Super Record EPS 12-Speed Front Derailleur offers impeccable performance.
Shimano Tiagra 4700 10 Speed Road Bike Groupset Setting the benchmark for entry-level models, the 4700 10 Speed Road Bike Groupset shares technology from Dura-Ace, Ultegra and 105 and has allowed Shimano to bring this quality level to more cyclists. Available in various crank arms lengths, chainring options and cassette size options, you can choose the setup that suits your personal preferences and the terrain your ride.The Tiagra 4700 groupset offers balanced performance and consistency; the updated range - which now supports internal cable routing - remains dependable and durable, requiring little maintenance.Tiagra 4700 Groupset Key Features: 2x10-Speed Compact or semi-compact chainset options Braze-on front derailleur Short cage or medium cage rear derailleur options Standard reach rim brake calipers 3 different cassette options Bottom bracket included (English thread)Included In The Box: 1x Tiagra 4700 chainset 2x Tiagra 10 speed dual control shifters 1x Tiagra 4700 2x10 speed braze-on front derailleur 1x Tiagra 4700 rear derailleur 2x Tiagra dual-pivot rim brake calipers 1x Tiagra HG500 10 speed road cassette Shimano Deore HG54 HG-X 10 Speed Chain Please Note: This groupset does not come with cablesShimano Tiagra 4700 ChainsetThe iconic four-arm crank design maintains a perfect balance between weight, efficiency and stiffness.Chainset Features: Speed: 10-Speed Bottom Bracket: Included (Threaded BSA) Chainset: Compact (50-34T) or Semi Compact (52-36T) Chain Line: 43.5mm Bolt Circle Diameter (BCD): 4x110mm (Shimano asymmetric) Crank Arm Length: 170mm, 172.5mm or 175mmShimano Tiagra 10 Speed Dual Control ShiftersTiagra 4700 runs on a 10-speed drivetrain operated by improved ergonomic shift/brake levers (STI). The slim and compact bracket grip offers easy reach to the brake/shift lever from the hood position and a comfortable lever feeling for a wide range of riders. Shifting is accurate and virtually effortless.Shifter's Features: Speed: Front: 2-Speed; Rear: 10-Speed Chainset Compatibility: Double Shift Cable: Lever side: OT-SP41/RD side: OT-SP41 Sealed Reach Adjuster: ScrewShimano Tiagra 4700 2x10sp Braze On Front DerailleurSleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with cascaded technology from Dura-Ace. It features an extra wide pivot link to increase rigidity while reducing flex for improved shifting response. Front Derailleur Features: Light action More ergonomic operation Less chain drop New chain guide and FC gear shape with HG-X chain Braze-on support bolt improves stability Speed: 2x10-Speed Top Gear Teeth: 53T Maximum Capacity: 16T Chain Stay Angle: 61-66° Mounting: Braze-on Chain Line: 43.5mmShimano Tiagra 4700 Rear DerailleurThe rear derailleur has a revised cable pitch, which offers precise and long-lasting shifting performance and is compatible with up to a 34T cassette.Rear Derailleur Features: Material: Aluminium Speed: 10-Speed Compatibility: Shimano 4700 10 speed shifters Mounting: Conventional hanger mount Intended Use: Road Maximum Low Sprocket: Short Cage: 28T; Medium Cage: 34T Maximum High Sprocket: Short Cage: 14T; Medium Cage: 12T Minimum Low Sprocket: Short Cage: 25T; Medium Cage: 28T Minimum High Sprocket: 11T (both cage sizes) Maximum Front Difference: 16T (both cage sizes) Total Capacity: Short Cage: 33T; Rear Cage: 41T Manufacturer's Part Number: Short Cage: RD4700SS; Medium Cage: RD4700GSShimano Tiagra Dual-Pivot Brake CalipersThe Tiagra brake system offers consistent all-around control in all conditions. Compared to the previous generation, the braking power has increased by 30%, while modulation of the brakes has also improved.Caliper Features: Brake Type: Super SLR Dual Pivot rim brake Mount Type: Standard single bolt Cartridge Shoe Holder: R50T5/R50T4 Brake Pads Included: Yes Brake Reach: 51mm Rim Width Compatibility: 19-26mm Max Tyre Clearance: 28cShimano Tiagra HG500 10 Speed Road CassetteBringing you features and technologies from Shimano's top-end models at a more affordable price, the Tiagra HG500 10 Speed road bike cassette delivers quick and accurate gear changes on every ride. Plus, to extend its lifespan, Shimano has coated its sprockets with nickel plating, which results in consistently smooth operation for longer. That's not all, as by drilling and machining the sprockets, the weight has been reduced without reducing any rigidity.Cassette Features: Use: Road Speed: 10-Speed Freehub Compatibility: Shimano style 9,10 and 11-Speed freehubs Recommended Chain: 10-speed road HyperGlide (HG) chains Use: Road Cassette Spacer Included: No Ratios: 11-28T: 11-13-14-15-17-19-21-23-25-28T; 11-32T: 11-12-14-16-18-20-22-25-28-32T; 12-28T: 12-13-14-15-17-19-21-23-25-28T Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load Corrosion-resistant steel cassette lockring Weight: 350g (11-32T)Shimano Deore HG54 HG-X 10 Speed ChainThe Deore HG54 HG-X 10 Speed Chain from Shimano uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette. Its outer plate design has been developed to reduce the chance of chain suck. The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and almost silent running. Durability is assured through a chromising treatment on link pins, and the heat treatment of rollers, pins, and plates.Chain Features: Speed: 10-Speed Length: 116 links Joining Pin Included: Yes Open design of inner links prevents grime build-up Mushrooming of the pins gives unsurpassed side-plate retention, enabling the chain to far exceed the BS/ISO standard for breaking force Corrosion-resistant grey finish on inner and outer plates Weight: 274gShimano Tiagra 4700 Bottom BracketStrong and smooth, the Shimano Tiagra 4700 threaded Bottom Bracket is for use with 2-piece cap-free design road chainset.Bottom Bracket Features: Minimal bearing interface gives superbly smooth rolling Easy installation English thread Suits Bottom Bracket Width: 68mm Weight: 72gPlease Note: This groupset does not come with cables.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The 8 special upward zones and 2 downward zones for the chainrings associated to the speed and precision of the new EPS derailleur guarantee top performance. The gear motor was developed in partnership with a Swiss company that produces electric motors used in missions to Mars. The actuator is also equipped with a "cascade gearbox" which allows movement to be transferred in an exact and rapid manner. Automatic Correction: Compared to the traditional mechanical derailleur that could be adjusted with micro displacements made by acting on the levers manually, the EPS derailleur is equipped with a very sophisticated electronic Automatic Correction system. Digital Tech Intelligence (DTI) DTI is housed inside the Power Unit and it continuously monitors the signals that arrive from all the EPS components, thus managing their operation. Waterproof In order to achieve the IP67 classification, all the electronic components of the EPS system underwent a series of tests, which proved their ability to function perfectly under one meter of water for at least 30 minutes.
Campagnolo EPS Record 2x11 Speed Front DerailleurFor 2015 there is a new geometry of the mech cage and a NEW software giving different cage strokes. The Campagnolo EPS drivetrain is an organic set of mechanical and electronic components that work together in an integrated way to guarantee maximum performance.In particular, the EPS derailleur interacts with the mechanical crankset and enhances the elevated derailleur speed and precision made possible with X.P.S.S. technology. The 8 special upward zones and 2 downward zones for the chainrings associated to the speed and precision of the new EPS derailleur guarantee top performance.The derailleur is composed of a mechanical structure with dropout and a series of electronic parts. The outer Derailleur Rod held in place by a double-finned pin that passes all the way through to increase rigidity. The System that links the derailleur to the frame is made of aluminium co-pressed with the engineering polymer of the body of the derailleur. This creates optimal solidity and rigidity ensuring that the derailleur maintains a correct position with respect to the frame. The core of the derailleur is composed of an electronic actuator; in turn composed of a gear motor with a built-in resolver that uses Magnetic Hall Sensor technology (as the sensor is not in contact it is not affected by the vibrations generated by the terrain, and is therefore always precise). The gear motor was developed in partnership with a Swiss company that produces electric motors used in missions to Mars. The actuator is also equipped with a "cascade gearbox" which allows movement to be transferred in an exact and rapid manner.Features: Automatic Correction: Compared to the traditional mechanical derailleur that could be adjusted with micro displacements made by acting on the levers manually, the EPS derailleur is equipped with a very sophisticated electronic Automatic Possition Correction system. DTI: Digital Tech Intelligence is housed inside the Power Unit and it continuously monitors the signals that arrive from all the EPS components, thus managing their operation. Water Proof: In order to achieve the IP67 classification, all the electronic components of the EPS system underwent a series of tests, which proved their ability to function perfectly under one meter of water for at least 30 minutes.Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite ridersHollow outer chainring, giving vast improvements in rigidity and increased weight savings,The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load,These industry leading HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength,The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer,There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines,HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency,Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability.
All-new lever ergonomics on the Dura-Ace ST-R9270 dual control levers bring new levels of comfort and control to road cycling. With the fastest wireless shifting available and even more precise brake modulation, Dura-Ace redefines performance. Now featuring Servo Wave Action brake technology, the new Dura-Ace ST-R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering the fastest, most precise gear changes available. All of this resides in a Dual Control Lever to employs the most advanced materials to offer lightweight and refined ergonomics that provide comfort and control for the most demanding conditions. Servo Wave Precise Braking Control When you pull a Servo Wave brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control. Shimano DCL 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 as critical to higher standard performance as the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and is 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. Shimano E-Tube E-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize 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 E-Tube Project via the Windows V4 application.
The Dura-Ace FC-R9200 chainset is the driving force at the heart of the bicycle. This chainset ensures that no portion of your pedal stroke is wasted. With hollow arms and chainrings, weight is kept to a minimum but stiffness and shifting precision is maximized. Hollowtech II Technology for World-Class Strength at a Low Weight The Dura-Ace FC-R9200 crank performs two vital functions: transferring your pedalling effort into the drivetrain and ensuring the fastest, most precise front shifting available. With Hollowtech II crank arms to ensure lightweight and Shimano's class-leading chainring designs, the FC-R9200 won't let you down. And the FC-R9200 12 Speed Chainset is offered in even shorter crank arm lengths to ensure there are options to fit any rider. Hollowglide Chainring Technology Hollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank Arms A lightweight crankset not only reduces the bike’s weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. The Best Balance of Stiffness, Strength and Weight The concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider’s power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. The Shimano Dura-Ace R9200 12 Speed Chainset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design.
Shimano Dura-Ace R9270 Di2 12 Speed Disc BrakeThe Dura-Ace R9270 Di2 12 Speed Disc Brake from Shimano features Servo Wave technology and is compatible with Shimano Di2 electronic drivetrain systems. Plus, it guarantees powerful all-weather stopping power and flex-free lightweight braking performance thanks to its carbon fibre brake lever and titanium hardware.All-new lever ergonomics on the Dura-Ace ST-R9270 dual control levers bring new levels of comfort and control to road cycling. With the fastest wireless shifting available and even more precise brake modulation, Dura-Ace redefines performance. Now featuring Servo Wave Action brake technology, the new Dura-Ace ST-R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering the fastest, most precise gear changes available. All of this resides in a Dual Control Lever to employs the most advanced materials to offer lightweight and refined ergonomics that provide comfort and control for the most demanding conditions. Servo Wave Precise Braking ControlWhen you pull a Servo Wave brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control. Shimano DCL Dual Control LeverDCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is as critical to higher standard performance as the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and is 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. Shimano E-TubeE-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize 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 E-Tube Project via the Windows V4 application. Features: Quick and intuitive shifting Series: Dura-Ace R9200 Series Drivetrain: Shimano Di2 Electronic Speeds: 12-Speed Carbon fibre brake lever and titanium hardware SERVO WAVE technology optimizes brake control Raised hood peak improves ergonomics, while a longer hood body increases hand support Compatible with satellite shifters 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteriesA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.