Key Features:The Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to wireless communication with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur,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,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,The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub and a quiet unobtrusive ride, enabling you to concentrate on the road ahead,Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D.,Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available,12-speed E-tube SD300 wire compatible.
Key Features:Ultegra Shadow design with 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 gear,The rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides ANT+ connection to 3rd party devises and replaces the handlebar junction,Button on the derailleur for Di2 operations, and LED light denotes synchronized shift mode, setting mode and charge requirements,Sleek appearance with Low profile Shadow design construction reduces risk of damage in a crash,Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift,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,Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts,High tolerance cold forged aluminium link plates and body construction is extremely light and durable,Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting,12-speed E-tube Di2 compatible,Wide gear ratio compatible up to 11-34T.
E-tube Di2 internal cable routing grommets to protect the wires as they enter the frame from snaggingFor SD300 wires,Protective solution that is quick and easy to install,To fit 7.5 x 8 mm frame hole diameter.
Ultegra Shadow design with 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 gearSleek appearance with Low profile Shadow design construction reduces risk of damage in a crash,Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift,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,Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts,High tolerance cold forged aluminium link plates and body construction is extremely light and durable,Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting,11-speed E-tube Di2 compatible,Wide gear ratio compatible with 11-28 up to 11-34T.
High quality, long lasting integrated frame mounting lithium-ion battery pack for Shimano STEPS systemsWaterproof design as well as impact and vibration resistant,1000 charge cycles without significant power loss,Approximately five hours charge time,Charge level display with error signal info and on/off switch,Charging port,Lock system for off bike security,High 630Wh capacity (36V, 14Ah).
Key Features:With 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 gear,The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts,Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold,Top bar button shift switches are used to operate the rear derailleur,Can be used in conjunction with ST-9270 drop bar STI shifters,Shift switches with 260 mm SD-300 series E-tube electrical cables fitted.
Key Features:Suitable for use with double or triple chainset,Fitting for braze-on downtube shifter mounts,Lightweight aluminium construction.
High quality, long lasting down tube frame mounted lithium-ion battery pack for Shimano STEPS systems,1000 charge cycles without significant power loss,Approximately four hours charge time,High 418Wh capacity (36V, 11.6Ah),Average weight 2650g.
Key Features:With 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 gear,The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts,Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold,Sprinter single button shift switches are used to operate the rear derailleur with a tap of the thumb whilst in the drops, one shifter up, one shifter down,Can be used in conjunction with ST-9270 drop bar STI shifters,Shift switches with 100 mm SD-300 series E-tube electrical cables fitted.
Key Features:High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions,Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts,With 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 gear,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,Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold,Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI,Hydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood position,Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear,Finely tuneable reach adjusters for the levers enable custom fitment for all hands,Levers use CR1632 batteries which last for approximately 1.5-2 years,Kit contains bled ST-R8170 STI, BR-R8170 flat mount brake callipers with pads, hoses and mineral oil (without rotors or adapters).
High quality, long lasting down tube mounting lithium-ion battery pack for Shimano STEPS systemsBattery shape to allow for rear shocks and plenty of top tube clearance,Waterproof design as well as impact and vibration resistant,1000 charge cycles without significant power loss,Approximately five hours charge time,Charge level display with error signal info and on/off switch,Charging port,Lock system for off bike security,High 630Wh capacity (36V, 14Ah).
The Airstop Butyl tubes are an economical long lasting tube, with good puncture resistance. 0.9mm wall thickness for optimum puncture protection and also the butyl tubes provide better resistance to friction caused by spokes and old rim tape.Features:Discipline: XC / Trail / AM / Kids,Valve types: Presta (40mm & 60mm) / Schrader,Butyl ensures pressure hold & puncture protection.