The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
Shimano Ultegra R8000 11 Speed Chainset w/o BBEagerly anticipated, the updated Shimano R8000 crankset has arrived. Featuring clear improvements in aesthetics and performance from the 6800 series, the Ultegra R8000 series has hugely benefited from the trickle-down technology of its big brother, the Dura-Ace R9000 model. This completely updated road bike chainset features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames that have wider rear dropouts and longer chainstays.Offering weight reduction without sacrificing stiffness, the Shimano Ultegra R8000 chainset enables a wide range of gear combinations to suit your every need. Paired with the updated front and rear derailleurs, your shifts will be so fast and reliable that you'll almost question whether they happened at all. The beautifully shaped crankarms borrow their styling from Dura-Ace and will complement and enhance the aesthetics of your bike.Hollowtech II TechnologyProviding 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 a rider's 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 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. Hollowtech II technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a 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: Speed: 11 Speed Number of Chainrings: 2 Crank Construction: Hollowtech II (24mm spindle) Chainline: 43.5mm Q-Factor: 146mm Bolt Circle Diameter (BCD): 4x110mm asymmetric Bottom Bracket Included: No Redesigned crank arms for greater frame compatibility Lightweight crankarm design optimised for power-transfer efficiency Weight: 53/39T Option: 690g; 46/36T Option: 668gTechnologies: Lightweight crankarm design optimised for power-transfer efficiency. Minimal weight without sacrificing stiffness. Hollowtech II. Rider-tuned gear performance through various gear combinations. Redesigned FC for greater frame compatibility. Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135mm and 410mm chainstay length.Manufacturer's Part Numbers: 89222995 Black 46/36T 170mm 89222994 Black 53/39T 165mmBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8000 11 Speed Chainset w/o BBEagerly anticipated, the updated Shimano R8000 crankset has arrived. Featuring clear improvements in aesthetics and performance from the 6800 series, the Ultegra R8000 series has hugely benefited from the trickle-down technology of its big brother, the Dura-Ace R9000 model. This completely updated road bike chainset features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames that have wider rear dropouts and longer chainstays.Offering weight reduction without sacrificing stiffness, the Shimano Ultegra R8000 chainset enables a wide range of gear combinations to suit your every need. Paired with the updated front and rear derailleurs, your shifts will be so fast and reliable that you'll almost question whether they happened at all. The beautifully shaped crankarms borrow their styling from Dura-Ace and will complement and enhance the aesthetics of your bike.Hollowtech II TechnologyProviding 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 a rider's 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 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. Hollowtech II technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a 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: Speed: 11 Speed Number of Chainrings: 2 Crank Construction: Hollowtech II (24mm spindle) Chainline: 43.5mm Q-Factor: 146mm Bolt Circle Diameter (BCD): 4x110mm asymmetric Bottom Bracket Included: No Redesigned crank arms for greater frame compatibility Lightweight crankarm design optimised for power-transfer efficiency Weight: 53/39T Option: 690g; 46/36T Option: 668gTechnologies: Lightweight crankarm design optimised for power-transfer efficiency. Minimal weight without sacrificing stiffness. Hollowtech II. Rider-tuned gear performance through various gear combinations. Redesigned FC for greater frame compatibility. Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135mm and 410mm chainstay length.Manufacturer's Part Numbers: 89222995 Black 46/36T 170mm 89222994 Black 53/39T 165mmBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Constructed from lightweight alloy with Hollowtech II crank arm technology, you'll benefit from this Shimano GRX 810 1x11 speed chainset's outstanding balance of stiffness, strength and pedal stroke performance. It features tighter gear steps for maintaining your momentum on familiar routes, while its optimised design dominates on gravel and muddy surfaces. Wherever the road takes you, this is a reliable companion for helping you explore longer and further than ever before. Technologies: HG-EV: HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. We provide optimal 11-speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved Hyperglide shifting. Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which will maximise a rider’s 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 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. Hollowtech technology is an ultra-lightweight hollow crankarm created by Shimano with the company’s own proprietary forging technology that also maintains rigidity. 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 Hollowtech II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. High Precision Sealing. Moreover, Hollwotech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
Ready to conquer every rough road, gravel path and muddy situation, this Shimano GRX 810 2x11 speed chainset delivers immense acceleration and momentum. It features chainrings that use gear ratios that preserve your riding rhythm over harsh surfaces with wider tyres, so you can get the most out of every ride. Providing you with the best balance of stiffness, strength, weight and rotating performance is its robust crank arm. This durable model is constructed from a tough alloy that offers excellent resistance against stones and debris which can come with a long ride across mixed terrain. Lightweight and incredibly versatile, you'll enjoy fast acceleration and maximum power transfer when shifting for an overall superior pedalling experience. No stranger to showing off the most impressive industry-leading technologies, this stunning example uses Hollowtech II crank arm technology to boost your gravel riding performance. This technology integrates your bottom bracket axle with its right crank arm for more stiffness and weight savings to achieve a highly efficient balance. Technologies: Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which will maximize a rider’s 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 over which the rider needs to pedal more.
The 1x chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, with no wasted overlapping gears or unnecessary moving parts to collect trail dirt. The Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions! Don’t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The ergonomics of this chainset mean it is suitable for any size of rider, with 4 crank arm lengths available. The outer chainrings are also easily interchangeable, with no need to disassemble the chainset if you want to alter your gearing. Technology: 2-piece cranks: UD carbon arms with an Ultra-Torque 630 steel axle, lightweight and strong ProTech™: strong, efficient, self-aligning semi axles, sealed from dirt by an external sealing clip as well as an internal sleeve Narrow-wide Tooth Design: efficient drive & maximum chain security
Shimano GRX 810 11 Speed Gravel Double ChainsetReady to tackle a variety of tough terrains, this durable chainset from Shimano is designed with high-performance and reliability in mind. The GRX 810 features a strong acceleration and output and benefits from a lightweight construction for enhanced speed on the road. Lightweight and Powerful Gravel CranksetThis durable model is constructed from a tough alloy which offers excellent resistance against stones and debris which can come with a long ride across mixed-terrain. Lightweight and incredibly versatile, you'll enjoy fast acceleration and maximum power transfer when shifting for an overall superior pedalling experience.No stranger to showing off the most impressive industry-leading technologies, this stunning example uses Hollowtech II crank arm technology to boost your gravel riding performance. This technology integrates your bottom bracket axle with its right crank arm for more stiffness and weight savings to achieve a highly efficient balance.Features:Part No: FC-RX810-2Material: AlloyUse: Gravel, RoadChainline: 46.9mmChainring Combination: 48/31TCompatible Chain: HG-EV 11 speed, HG-X11Arm: 4-armBCD: 110/80mmRecommended Bottom Bracket: Pressfit: SM-BB72; Threaded: SM-BBR60Q-factor: 151mmSpeed: 11 SpeedWeight: 710gTechnologies:Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which will maximize a rider’s 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 over which the rider needs to pedal more.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 GRX 810 11 Speed Gravel Single ChainsetWhether you’re looking to simplify the gearing on your adventure road bike, or you want to tear up some gravel routes, the tough and versatile GRX 810 model can handle it all. Ready for 1x11 speed drivetrains and available in various tooth counts, it’s designed to combine with larger cassettes at the rear to help you to maintain a smooth pedalling cadence over unpredictable terrain. The chaining also adopts a “narrow/wide” tooth profile to prevent chain drops as you roll over the harshest surfaces. Made from lightweight aluminium, it adopts Shimano’s reliable HollowTech II system, bringing you increased rigidity for efficient power transfer.Features: Material: Alloy Speed: 1x11-Speed Axle Diameter: 24mm (for use with HollowTech II type bottom brackets) Use: Gravel, Road 4 Arm or 5 Arm: 4-arm Chainring Tooth Count: Separate 40 or 42T options Chainring Included: Yes Bolt Circle Diameter (BCD): 4x110mm (Shimano-specific asymmetric) Chainline: 50.1mm Q-factor: 151mm Compatible Chain: HG-EV 11-Speed, HG-X11 Recommended Bottom Bracket: Pressfit: SM-BB72; Threaded: SM-BBR60 Bottom Bracket Included: No Drive side crank arm is drilled for an inner chainring for 2x11-Speed gearing (inner chainrings sold separately) Manufacturer's Part Number: FC-RX810-1 Weight: 40T Option: 656g (172.mm); 42T Option: 644g (172.mm)Technologies:Hollowtech II: . Hollowtech technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. 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 HG-EV Compatible: HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. Shimano provide an optimal 11-Speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11 speed gear without compromising the 10 speed durability and improved Hyperglide shifting 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 GRX 810 11 Speed Gravel Single ChainsetWhether you’re looking to simplify the gearing on your adventure road bike, or you want to tear up some gravel routes, the tough and versatile GRX 810 model can handle it all. Ready for 1x11 speed drivetrains and available in various tooth counts, it’s designed to combine with larger cassettes at the rear to help you to maintain a smooth pedalling cadence over unpredictable terrain. The chaining also adopts a “narrow/wide” tooth profile to prevent chain drops as you roll over the harshest surfaces. Made from lightweight aluminium, it adopts Shimano’s reliable HollowTech II system, bringing you increased rigidity for efficient power transfer.Features: Material: Alloy Speed: 1x11-Speed Axle Diameter: 24mm (for use with HollowTech II type bottom brackets) Use: Gravel, Road 4 Arm or 5 Arm: 4-arm Chainring Tooth Count: Separate 40 or 42T options Chainring Included: Yes Bolt Circle Diameter (BCD): 4x110mm (Shimano-specific asymmetric) Chainline: 50.1mm Q-factor: 151mm Compatible Chain: HG-EV 11-Speed, HG-X11 Recommended Bottom Bracket: Pressfit: SM-BB72; Threaded: SM-BBR60 Bottom Bracket Included: No Drive side crank arm is drilled for an inner chainring for 2x11-Speed gearing (inner chainrings sold separately) Manufacturer's Part Number: FC-RX810-1 Weight: 40T Option: 656g (172.mm); 42T Option: 644g (172.mm)Technologies:Hollowtech II: . Hollowtech technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. 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 HG-EV Compatible: HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. Shimano provide an optimal 11-Speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11 speed gear without compromising the 10 speed durability and improved Hyperglide shifting 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.
RX810 series cranks offer Shimano’s widest-ever delta between small and large chainrings, a 17-tooth gap, that also debuts the company’s first ever 48-31T option. This, when paired with the available 11-34 cassette, offers an exceptionally low climbing gear while maintaining a 48-11 ratio that allows riders to take advantage of strong tailwinds and long descents. RX810 series cranks also are available in a single chainring option for those who prefer the simplicity and decreased weight of a 1x11 drivetrain with one of Shimano’s wide ratio 11-40 or 11-42T cassettes. All GRX cranksets use a new, +2.5mm chainline for increased tire and frame clearance.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Optimum gearing for mixed terrains and riding styles,Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires,Crank length options: 170/172.5/175mm,Gear options: Double 48-31T,Single: 40T / 42T.
Although the crank arms and spider arms are noticeably bigger, which increases stiffness, the overall weight has dropped by 7g over the previous edition of Dura-Ace. Shimano has adapted the crankset to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. The Double version offered here comes in numerous gear combinations to best suit each individual riders needs. Please note: Bottom bracket is NOT included