The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
Eagerly 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.
Accurate Readings in all Conditions Shimano have extensively tested this new power meter system to ensure its accuracy and reliability in all weather conditions. The chainset is equipped with dual sided and internally hard-wired crank arm strain gauges, which provide a ±2% power measurement accuracy regardless of your pedalling position. Easy to Maintain The power meter is powered with a simple rechargeable battery for easy maintenance and can be updated wirelessly. As it is mounted to the crank arms 4-arm spider, you can change the chainrings without having to worry about affecting the power measurement. Lighter and stiffer Although the crank arms and spider arms are noticeably bigger to increase stiffness, the overall weight has dropped by 7g over the previous edition of Dura-Ace. The chainset has been adapted 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. This Compact version features a 50/34T chainring profile to offer an excellent rider tuned gear combination for varied conditions from flats to high mountains.
The HollowTech II Chainset features hollow forged crank arms which are both lightweight and rigid whilst being incredibly strong and durable. HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability. HG-X chainring with patented spike pins give smooth and fast gear shifts under load. With a 48.8mm double ring chain line for use in conjunction with 135 / 142 mm O.L.D. We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit.
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. The crankset has been adapted 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 Compact version offered here features a 50.34T chainring profile to offer an excellent rider tuned gear combination for varied conditions from flats to high mountains. Please note: Bottom bracket is NOT included.
This Shimano Deore M6000 10 Speed Boost Double Chainset benefits from the technology of Shimano’s top-end models, yet it still offers outstanding value for money. Smooth Shifting Smooth and durable power transfer is provided by the two-piece "Hollowtech II” bottom bracket system, and quick and crisp shifting action is ensured thanks to the “Dyna-Sys” chainrings. Even under load, you’ll be able to shift with ease and maintain momentum as you beat your riding buddies or rivals to the bottom of the trail! Additional Item Top Features: - 3mm outboard crankset designed for "Boost" bikes. - Optimised gear combinations and ratios for trail riding. - Designed for an external bottom bracket system that is lightweight and incredibly strong. - Lightweight and rigid steel bottom bracket axle. - Smooth-shifting rhythm helps maintain speed and acceleration over challenging terrain. - Close step tooth profile for smooth shifting. - Stable shifting performance in any suspension position. - Single spike structure for stable shifting. - Dyna-Sys compatible. - Bottom bracket not included. Technologies: Hollowtech II: 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 low weight, a key element of the crankset, aids in cycling longer distances. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. For most frames, Hollowtech II with its 24mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability. Hollowtech II bottom brackets also have high-precision seals to increase durability, maintaining excellent rotating performance for long periods.
This crankset benefits from the technology of Shimano’s top-end models, yet it still offers outstanding value for money. Smooth Shifting Smooth and durable power transfer is provided by the two piece "Hollowtech II” bottom bracket system, and quick and crisp shifting action is ensured thanks to the “Dyna-Sys” chainrings. Even under load, you’ll be able to shift with ease and maintain momentum as you crest those climbs with a smile on your face! Additional Features: Close step tooth profile for smooth shifting Stable shifting performance in any suspension position Single spike structure for stable shifting Dyna-Sys compatible
Taking many of its features from the brand's pro-level components, this Shimano Tiagra 10 speed chainset is engineered for dependable performance on your road bike. SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting and its 2-piece cap-free design is quick and easy to install whilst being lighter and stiffer than a traditional crank/bottom bracket assembly. Technologies: 2-Piece Crankset: Integrated crank arm and bottom bracket. Increased rigidity with less weight. Wider bearing positioning. Rigidity is enhanced and pedalling force is efficiently transmitted. Precision Bearings. Low maintenance and simplified installation. - Optimal balance between stiffness and light weight. - 2-piece cap-free design is quick and easy to install. - Lighter and stiffer than a traditional crank/bottom bracket assembly. - SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting. - Enjoy fluid shifting across various riding conditions. - Designed to work with HollowTech II type bottom bracket cups. - Refined gear shape optimised for use with Shimano 10-Speed HG-X chains.
The Shimano Deore M6000 10 speed double chainset benefits from the technology of Shimano's top-end models, yet it still offers outstanding value for money. Smooth and durable power transfer is provided by the two piece "Hollowtech II” bottom bracket system and quick and crisp shifting action is ensured thanks to the “Dyna-Sys” chainrings. Even under load, you’ll be able to shift with ease and maintain momentum as you beat your riding buddies or rivals to the bottom of the trail. Additional Item Top Features: - Optimised gear combinations and ratios for trail riding. - Designed for an external bottom bracket system that is lightweight and incredibly strong. - Lightweight and rigid steel bottom bracket axle. - Smooth-shifting rhythm maintains speed and acceleration over challenging terrain. - Close step tooth profile for smooth shifting. - Stable shifting performance in any suspension position. - Single spike structure for stable shifting. - Dyna-Sys compatible. - Bottom bracket not included. Technologies: Hollowtech II: 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 low weight, a key element of the crankset, aids in cycling longer distances. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. For most frames, Hollowtech II with its 24mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability. Hollowtech II bottom brackets also have high-precision seals to increase durability, maintaining excellent rotating performance for long periods.