The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates corrosion and stretching but provides effortless gear shiftsUltegra Di2 uses a fully removable individual cable system from the battery indicator junction box enabling fine tuning with the correct cable length to each component for easy and tidy fitmentEW-SD50 wires are required to connect the junction (either SM-JC40 external or SM-JC41 internal to the rear mech front mech battery and to the handlebar battery indicator junction boxEW-SD50 individual wires are available in varying lengths there is no need (or facility) to cut these cablesReliable and secure water resistant connectors
SM-JC40 cable junction for external wire routingJunction is required for connection of rear mech front mech battery and cable to battery indicator junction boxTo be mounted on bottom bracket cable guide threaded fitmentCables sold separatelyReliable and secure water resistant connectors
The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates corrosion and stretching but provides effortless gear shifts Ultegra Di2 uses a fully removable individual cable system from the battery indicator junction box enabling fine tuning with the correct cable length to each component for easy and tidy fitment EW-SD50 wires are required to connect the junction (either SM-JC40 external or SM-JC41 internal to the rear mech front mech battery and to the handlebar battery indicator junction box EW-SD50 individual wires are available in varying lengths there is no need (or facility) to cut these cables Reliable and secure water resistant connectors
SM-JC41 cable junction for internal wire routingJunction is required for connection of rear mech front mech battery and cable to battery indicator junction boxTo be positioned neatly inside frame tubing when connectedCables sold separatelyReliable and secure water resistant connectors
High performance 10-speed Road cassetteHyperglide sprockets have a computer designed tooth configuration with contoured shift gates resulting in a crisp smooth shift even under loadClose ratio gearing allows a more efficient use of energy through finer cadence controlThree largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigiditySprockets are cut away and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionChrome-plated steel cassette lockringFor Super Narrow 10-speed HG chainsWeight: 235 g for 11 - 23T
Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance even under the most demanding gear changesHyperglide sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wearWide gear range to meet the demands of all types of riderWeight 208 grams (11-23 teeth)
WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 60 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialists,Easy to use Center Lock rotor mount for use with disc brakes,Stainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidity (OPTBAL),Elbow-less spokes make for a strong yet compliant wheel,High lateral rigidity is produced with a wide flange spacing,Labyrinth double-contact sealing effectively shuts out water and dirt,Alloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces friction,Freehub uses direct engagement interlocking faces for quick power transfer,Cold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimum,700C clincher compatible,For 142 x 12 mm axle,11-12-speed compatible rear wheel.
WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 60 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialistsEasy to use Center Lock rotor mount for use with disc brakesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidityElbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimumFor 100 x 12 mm axle700C tubless clincher compatible.
WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 50 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialistsEasy to use Center Lock rotor mount for use with disc brakesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidityElbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimumFor 100 x 12 mm axle700C clincher compatible.
Key Features:A reliable 7-speed screw-on freewheel,Engineered for smooth chain movement up or down the block,For 7-speed gear systems,Can be easily installed onto compatible screw-on type hub,Suitable for mountain bikes and a wide range of other cycles.
High performance Ultegra hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditionsWith 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 gearThe removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shiftsFull 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 ratioSimply 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 power with less effort especially from the hood positionHydraulic 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 handsFree stroke adjustment for pad to rotor contact settingLevers are supplied without electrical cables, as these need to be ordered separately to suitTwo ports for use with E-tube electric cablesPlease Note: Levers only
The HollowTech II 12-speed Ultegra chainset with integrated power meter offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders Accurately calibrated strain gauges are integrated inside the crank arm, this provides a stable measurement system through rotation from both sides for extremely precise data,+/-2% accuracy of strain gauge measured power,Bluetooth and ANT+ with wireless firmware update and data acquisition system,Easily rechargeable integrated battery with fully waterproof reliable electric system,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).