With several years of development & working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter Hollow Tech II 12-speed Dura-Ace chainset Accurately calibrated strain gauges are integrated inside both left & right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data +/-2% accuracy of strain gauge measured power Bluetooth & ANT+ with wireless firmware update & data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability ...

With several years of development & working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter Hollow Tech II 12-speed Dura-Ace chainset Accurately calibrated strain gauges are integrated inside both left & right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data +/-2% accuracy of strain gauge measured power Bluetooth & ANT+ with wireless firmware update & data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability ...

With several years of development & working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter Hollow Tech II 12-speed Dura-Ace chainset Accurately calibrated strain gauges are integrated inside both left & right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data +/-2% accuracy of strain gauge measured power Bluetooth & ANT+ with wireless firmware update & data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability ...

With several years of development & working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter Hollow Tech II 12-speed Dura-Ace chainset Accurately calibrated strain gauges are integrated inside both left & right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data +/-2% accuracy of strain gauge measured power Bluetooth & ANT+ with wireless firmware update & data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability ...

With several years of development & working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter Hollow Tech II 12-speed Dura-Ace chainset Accurately calibrated strain gauges are integrated inside both left & right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data +/-2% accuracy of strain gauge measured power Bluetooth & ANT+ with wireless firmware update & data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability ...

Top of the range SLR-EV dual symmetric pivot calliper brake with quick linear response, increased rigidity, & enhanced braking power Enhanced brake arch proportions give a quicker linear response & increased power Better clearance with wider tyres, compatible with 28C tyre size Titanium centre pivot bolt for light weight Thrust bearings & coated bushings between arms for smooth linear feel & increased durability Brake pad compound offers excellent stopping power under wet & dry conditions, with enhanced durability Spring tension adjuster for precision setup Adjustable toe-in on the brake shoes for easy setting up ...

Top of the range, high performance Dura-Ace low profile hydraulic road disc brake for efficient braking in all conditions Front wheel use for flat mount forks with adapter to flip between 140 & 160 mm Oversized 22mm ceramic pistons optimized for heat insulation, lightweight & stiffness Opposed 2-piston design reduces leading effect & optimal pad wear enhanced pad to rotor clearance with 10% increase pad clearance over BR-B9170 reduces the chance of rotor drag Direct flat mount & open design allows easy & quick wheel replacement Forged calliper design is lightweight & rigid One way internal fluid circuit makes bleeding easy Mineral oil brake fluid is non-corrosive & less hazardous than conventional hydraulic brake fluid Shim-less mounting bracket allows for quick installation & setting up Recommended for use with Ice Tech FREEZA Center Lock SM-MT900 rotors for optimum braking performance Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C Inline hose routing for low profile design Separate bleed port & valve screw for enhanced bleeding process ...

Top of the range, high performance Dura-Ace low profile hydraulic road disc brake for efficient braking in all conditions Front wheel use for flat mount forks with adapter to flip between 140 & 160 mm Oversized 22mm ceramic pistons optimized for heat insulation, lightweight & stiffness Opposed 2-piston design reduces leading effect & optimal pad wear enhanced pad to rotor clearance with 10% increase pad clearance over BR-B9170 reduces the chance of rotor drag Direct flat mount & open design allows easy & quick wheel replacement Forged calliper design is lightweight & rigid One way internal fluid circuit makes bleeding easy Mineral oil brake fluid is non-corrosive & less hazardous than conventional hydraulic brake fluid Shim-less mounting bracket allows for quick installation & setting up Recommended for use with Ice Tech FREEZA Center Lock SM-MT900 rotors for optimum braking performance Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C Inline hose routing for low profile design Separate bleed port & valve screw for enhanced bleeding process ...

Performance without compromise. Dura-Ace rear derailleur with lightweight carbon cage & wide link design gives quick accurate shifts. Key

Features: Full unidirectional carbon fibre inner & outer pulley plates enhance rigidity & significantly reduce weight (not the 2k weave as shown in the picture). High tolerance cold forged aluminium link plates & body construction provide for extremely light weight, strength & durability. High rigidity wide outer link plates & pulley body to increase pivot joint rigidity. Sealed pulley bearings reduce friction & rotate silky smooth, increasing efficiently. Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting. Pulleys are made from tough Du Pont Zytel for longer life & less chain noise. With a total capacity of 33 tooth, it is able to operate with wide gear ratios up to a 28 tooth cassette sprocket. Hard wearing Dura-Ace finish & graphics for long lasting good looks. Fully 10-speed compatible. Weight: 166g (Manufacturer claimed).

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Boasting a lightweight carbon cage the Shimano Dura-Ace RD-7900 Bicycle Rear Derailleur
- 10 Speed is designed for quick & precise
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