The great value ST-R7170 105 Wireless hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions. Full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio.Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shiftsWith Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gearSimply pressing tactile buttons allows effortless and comfortable shifting even when your hands are coldDrop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STIHydraulic brake lever provides excellent stopping powerHydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wearFinely tuneable reach adjusters for the levers enable custom fitment for all handsLevers use CR1632 batteries which last for approximately 1.5-2 yearsKit contains bled ST-R7170 STI, BR-R7170 flat mount brake callipers with pads, hoses and mineral oil (without rotors or adapters)
SRAM's Eagle drivetrains set the benchmark for mountain bike drivetrains and now that same technology is now available at even more affordable level thanks the new NX Eagle DUB groupset. Using all the technology crammed into their higher-end groupsets, NX Eagle sets a new standard for performance and value for money.11-50t cassette provides massive gear range and fits on regular freehub bodyForged aluminium cranks are strong & incredibly stiff while steel X-Sync 2 chainring provides excellent chain retentionRear derailleur features a Type 3 clutch to provide perfect chain retention and smooth shiftingErgonomically designed trigger shifter shifts between gears seamlessly, even under loadSmooth shifting & highly durable chain with cutting-edge Flow Link designSuitable for bikes with 135/142mm rear axle spacingThe centrepiece of SRAM's Eagle drivetrains are the 12-speed cassettes, and the PG-1230 Eagle Cassette forms the centrepiece of the NX Eagle groupset, by providing the same wall climbing 50t bottom cog as the other groupsets, while the use of an 11t top cog means the cassette fits on a regular 8/9/10 speed splined freehub, meaning lower cost and better compatibility. Based around SRAM's DUB 28.99 axle standard, the NX Eagle DUB crankset features 6000-series forged aluminium arms that are both strong, stiff and lightweight and when used in conjunction with SRAM's DUB bottom brackets provide a smoother running and more durable system. The DUB system replaces SRAM's previous GXP and BB30 crank and bottom bracket systems to provide improved durability, better compatibility and a stiffer, stronger and lighter product. DUB cranks can be used with any existing bottom bracket standard when used with the appropriate DUB bottom bracket. Performance benefits aside, it also means your crank is future proofed in case you happen to swap your frame. SRAM's X-Sync 2 chainrings set the standard when the design was first released alongside the XX1 and X01 Eagle drivetrains and the NX Eagle DUB crankset uses a more durable steel version that uses the same unique hooked tooth profile that tenaciously holds the chain in place as well as improving durability of the chainring and chain.The NX Eagle Rear Derailleur features SRAM's X-Actuation technology which has been developed specifically for SRAM 1x drivetrains to ensure that shifting remains sharp, smooth and consistent across the entire cassette. The NX Eagle Trigger shifter uses the same ergonomic design as SRAM's higher end shifters and carries over many of their features, including Zero Loss to provide instant and responsive shifting as well as being MatchMaker X compatible, so it can be easily synced with SRAM brake levers to leave a clean, uncluttered cockpit. The NX Eagle Trigger Shifter also features a unique cover for the gear cable, so you can easily change the gear cable without having to dismantle the shifter cover, making cable changes a breeze. Using the same design and manufacturing techniques as SRAM's higher end Eagle chains, the NX Eagle Chain uses a highly durable solid pin construction and clever link profile to provide precise and slick shifting under even the harshest conditions. The unique profile also provides significantly reduced wear on Eagle cassettes and chainrings, massively extending the usable life of your drivetrain. SRAM's PowerLock quick links also make installation and removal a breeze. SRAM's NX Eagle DUB Groupset may cost a fraction of their higher end groupsets, but the performance is still exemplary and it packs an almighty punch without putting too big of a dent in your wallet. Wide range 1x drivetrains have never been so attainable thanks to NX Eagle.
The SRAM Eagle XG-1299 12 Speed Cassette completely destroys any argument in favour of a front derailleur on a mountain bike. The XG-1299 offers a huge gear range of at least 500% at a considerably smaller weight than 2x systems.Greatest Durability and Lightest Weight AvailableX-DOME TechnologyAll New Shifting Features XD Driver Body CompatibleHuge Gear Range for all terrainIncorporating X-DOME architecture which offers incomparable strength, weight and performance, the XG-1299 is XD driver body compatible, and features all-new shifting features creating a smoother, quieter system with enhanced shift performance.
Mavic XA Elite Carbon MTB WheelsetThe XA Elite Carbon MTB Wheelset features a carbon fibre rim with a hookless, tubeless-ready profile and 6-bolt disc brake compatibility, making it perfect for mountain bike (MTB) trail-riding and cross country (XC) racing.Ready for long days on your favourite local trails as well as intense cross country racing events, the Mavic XA Elite Carbon wheels are well-equipped for the demands of modern mountain bike (MTB) riding. They feature a high-quality 100% unidirectional carbon fibre rim construction, which gives you an excellent balance of stiffness and strength as well as an overall low weight on your ride.Thanks to the hookless, tubeless-ready rim profile, you'll also enjoy tubeless advantages such as superior traction, smoother rolling performance and less chances of flats or punctures. Coming complete with 6-bolt disc brake compatibility, this model ensures powerful and consistent braking as you dominate your way from trail to trail.Features: Rim Material: 100% Unidirectional Carbon Fibre with hookless profile Use: Mountain Bike (MTB), Cross Country (XC) Axle Size: Front: 15x100mm; Rear: 12x142mm Internal Rim Width: 30mm ETRTO: 27.5" Option: 584x30TSS; 29": 622x30TSS Drilling: Traditional Tubeless Ready: Yes Rim Profile: Hookless profile Single or Pair: Pair Tyre Compatibility: Hookless compatible UST tubeless and tube type Recommended Tyre Sizes: 60mm to 76mm (2.35" to 3.0") Valve Hole Diameter: 6.5mm Spoke Material: Steel Spoke Shape: Straight pull, round Spoke Count: 24 Spoke Lacing: 2 cross Hub Body: Aluminium Axle Material: Aluminium Rear Wheel Freewheel: Instant Drive 360 Rear Wheel Freehub Compatibility: Multiple options available to select Brake Compatibility: 6-bolt disc brake Bearings: Auto adjust sealed cartridge bearings (QRM Auto) Max Rider Weight: For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg, bike included ASTM Category 3: Cross country and trail riding Weight: 1715g (pair)Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Orra 650B Alloy Gravel WheelsetDeveloped with Team Spectra, this gravel bike wheelset uses a rim that's designed and tested in house by Prime, so that riders can enjoy a confident and secure ride that's backed up by extensive research and development. Benefitting from a high-quality 6066 aluminium rim construction, this model offers a fantastic balance of strength and durability for handling the demands associated with travelling across mixed terrain conditions on your gravel bike. Whether you're spending the weekend exploring the countryside or planning your next epic gravel adventure, this wheelset is developed for smooth and dependable rolling performance.Tubeless Ready Gravel WheelsetBuilt for the challenges of modern gravel adventure riding, this wheelset is kitted out with tubeless ready rim technology. This means that you can enjoy tubeless advantages such as the ability to run lower tyre pressures for increased stability on rough terrain conditions, lower rolling resistance and fewer chances of flats or punctures. With a 26mm internal rim width and a 28mm rim depth, it is ideal for gravel riding and training as well as for riders who want to use wider tyres.Star Ratchet HubsProviding gravel riders with superior reliability, this wheelset is equipped with Star Ratchet Hubs that offer greater dependability due to each of the ratchets engaging simultaneously every time. Another highlight is this model's incorporated notch, where the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. It also offers tool-free freehub conversion. This makes the Prime Orra 650B Alloy Gravel Wheelset a perfect choice of upgrade for a wide range of gravel riding disciplines.Please note: This wheelset is only compatible with tubeless tyres.Features: Rim Material: 6066 Aluminium Use: Gravel Axle Size Compatibility: Front: 135x12mm; Rear: 142x12mm (out of the box) Rim Width: 26mm (internal) Rim Depth: 28mm Rim Type: Clincher Hub: SR2D, 36T Ratchet System, CNC machined 6061 Alloy hub body Hub Bearings: Front: 2x 15267; Rear: 1x 6902, 1x 17287; Freehub: 2x 6802 Freehub: Shimano/SRAM 9/10/11 speed Spokes: Front: PDB1415 JB, 265mm (Disc Side), PDB1415 JB, 267mm (Drive Side); Rear: PDB1415 JB, 261mm (Drive Side), PDB1415 JB, 267mm (Disc Side) Tubeless Ready: Yes Brake Type: Disc Brake Disc Mount: Centre Lock Rider Weight Limit: 110kg Weight: Front: 910g; Rear: 1025g; Wheelset: 1935gIn The Box: Tubeless Valves 10 speed spacer 15mm thru axle end caps QR end capsSpares (available separately)54 Tooth Star Ratchet Upgrade Kit Black One SizeSR Hub Bushing Black 12mmStar Ratchet Grease Neutral 100mlSR2D 12mm Front End Caps Black 12mmSR2D 12mm Rear End Caps Black 12mmSR2D 15mm Front End Caps Black 15mmSR2D QR Front End Caps Black QRSR2D QR Rear End Caps Black QRSR2D Disc Brake Rear Hub Grey 12 x 142mmSR2D Front Axle Silver 12 x 135mmSR2D Rear Axle Silver 12 x 142mmSR Freehub Body - Campagnolo Black 9/10/11 SpeedSR Freehub Body - Campagnolo 13 Speed Black 13 SpeedSR Freehub Body - Shimano Black 9/10/11 SpeedSR Freehub Body - XDR Black 12 SpeedPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP.Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Orra 700C Alloy Gravel WheelsetFeaturing a tough 6066 aluminium rim construction, this gravel bike wheelset offers an excellent balance of strength and reliability wherever your adventure takes you. Developed with Team Spectra with in-house design and testing from Prime, this wheelset offers a confident and smooth ride as you clock up the miles. Whether you're planning your next epic gravel ride with your buddies or exploring new backroad routes on your own, this wheelset is ready.Tubeless Ready Gravel Bike WheelsetBuilt for the challenges of modern gravel adventure riding, this wheelset is kitted out with tubeless ready rim technology. This means that you can enjoy tubeless advantages such as the ability to run lower tyre pressures for increased stability on rough terrain conditions, lower rolling resistance and fewer chances of flats or punctures. With a 24mm internal rim width and a 28mm rim depth, the Orra 700C is ideal for gravel riding, training and adventures.Star Ratchet HubsProviding gravel riders with superior reliability, this wheelset is equipped with Star Ratchet Hubs that offer greater dependability due to each of the ratchets engaging simultaneously every time. Another highlight is this model's incorporated notch, where the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. It also offers tool-free freehub conversion.Whether you're exploring or planning your next weekend-long gravel adventure, the Prime Orra 700C Alloy Gravel Wheelset is a perfect choice of upgrade for dependable performance on every mile.Please note: This wheelset is only compatible with tubeless tyres. Rim Material: 6066 Aluminium Use: Gravel Axle Size Compatibility: Front: 135x12mm; Rear: 142x12mm Rim Width: 24mm (internal) Rim Depth: 28mm Rim Type: Clincher Hub: SR2D, 36T Ratchet System, CNC machined 7075 Alloy hub body Freehub: Anti Bite Guard, Shimano/SRAM 9/10/11 speed Hub Bearings: Front: 2x 15267, Rear: 1x 6902, 1x 17287, Freehub: 2x 6802 Spokes: Front: PDB1415 JB, 284mm (Disc Side), PDB1415 JB, 286mm (Drive Side); Rear: PDB1415 JB, 280mm (Drive Side), PDB1415 JB, 285mm (Disc Side) Tubeless Ready: Yes Brake Type: Disc Brake Disc Mount: Centre Lock Rider Weight Limit: 110kg Weight: Front: 855g; Rear: 933g; Pair: 1848gIn The Box: Tubeless Valves 10 speed spacer 15mm thru axle end caps QR end capsSpares (available separately)54 Tooth Star Ratchet Upgrade Kit Black One SizeSR Hub Bushing Black 12mmStar Ratchet Grease Neutral 100mlSR2D 12mm Front End Caps Black 12mmSR2D 12mm Rear End Caps Black 12mmSR2D 15mm Front End Caps Black 15mmSR2D QR Front End Caps Black QRSR2D QR Rear End Caps Black QRSR2D Disc Brake Rear Hub Grey 12 x 142mmSR2D Front Axle Silver 12 x 135mmSR2D Rear Axle Silver 12 x 142mmSR Freehub Body - Campagnolo Black 9/10/11 SpeedSR Freehub Body - Campagnolo 13 Speed Black 13 SpeedSR Freehub Body - Shimano Black 9/10/11 SpeedSR Freehub Body - XDR Black 12 SpeedPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP.Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8150 Di2 12 Speed Shifter SetThe Ultegra R8150 Di2 12 Speed Shifter Set from Shimano is a pair of dual control brake/shift levers that are compatible with Shimano Di2 electronic drivetrain systems and SLR-EV dual position caliper rim brakes. Engineered to ensure precise and easy action gear shifting and outstanding all-weather braking performance, this lever-set is optimised for fast racing, long rides and competitive events.Among the greatest performing Dual Control Levers on the market, Ultegra R8150 Di2 offers 12-speed shifting with refined ergonomics and is exceptionally lightweight. Ultegra R8150 Di2 Dual Control Levers are the ultimate in reliable performance thanks to a Di2 electronic wired gear connection and lightweight rim brakes. Refined ergonomics and advanced materials show the racing pedigree of these levers. 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. 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. SLR-EV Caliper CompatibleSLR-EV is Shimano's SLR braking technology with a dual symmetric pivot brake caliper. The short-arm brake design employs two bearings and a roller to realize greater efficiency in the pivot area and deliver superior modulation and power for braking. Together with the BC-9000 brake cable, the latest calipers deliver 36% more braking power than Shimano's previous brake model. Features: Quick and intuitive shifting Series: Ultegra R8100 Series Drivetrain: Shimano Di2 Electronic Speeds: 12-Speed Type: Caliper Rim Brake Clearly defined click feeling with the ergonomic shift lever Better bike control and confidence in race conditions Hood shape and texture optimize grip and brake power transmission Weight: 295g (pair)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.
Shimano M6100 Deore 12Sp MTB Drivetrain GroupsetEnjoy smooth and reliable shifting control with this 12 speed MTB Drivetrain Groupset from Shimano. Made for mountain bike (MTB) riders, this set gives riders the ultimate set for tackling whatever challenges you meet on the trail. Equipped with a durable Chainset, Rear Mech, Shifter, Cassette, and Chain, you can enjoy a smooth and dependable drivetrain performance.Groupset Includes:Shimano Deore FCM6100E2 ChainsetShimano Deore RDM6100SGS Rear MechShimano Deore SLM6100R ShifterShimano Deore CSM6100051 CassetteShimano Deore CNM6100126Q ChainFeatures:Use: MTBSpeed: 1x12 speedTooth Profile: Narrow/WideCrank Mount: Direct mountCassette Ratio: 10-51 Teeth (T)Freehub Compatibility: MicrosplineChainring Size: 32TCrank Mount: Direct mountBottom Bracket: Not includedTechnology: Dynamic Chain Engagement technology, Shimano Shadow RD+, Rapidfire Plus, Two Way Release, HyperGlide+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.
Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow 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 ArmsA 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. Optimised Balance of Stiffness, Strength and WeightThe 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. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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.
Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow 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 ArmsA 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. Optimised Balance of Stiffness, Strength and WeightThe 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. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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.
Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. 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. Optimised 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.
Among the greatest performing Dual Control Levers on the market, Ultegra R8150 Di2 offers 12-speed shifting with refined ergonomics and is exceptionally lightweight. Ultegra R8150 Di2 Dual Control Levers are the ultimate in reliable performance thanks to a Di2 electronic wired gear connection and lightweight rim brakes. Refined ergonomics and advanced materials show the racing pedigree of these levers. 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. 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. SLR-EV Caliper Compatible SLR-EV is Shimano's SLR braking technology with a dual symmetric pivot brake caliper. The short-arm brake design employs two bearings and a roller to realize greater efficiency in the pivot area and deliver superior modulation and power for braking. Together with the BC-9000 brake cable, the latest calipers deliver 36% more braking power than Shimano's previous brake model.