specialized giant cube cannondale Mavic Castelli endura altura
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  • Product description

    The ULTEGRA 6870 Di2 series with electronic shifting is "pro-proven" as it is a direct trickle down from the DURA-ACE group. It stands for state-of-the-art technology, proven in pro races, the technologies used in the new ULTEGRA 8670 series 11 speed, newly designed brakes, new chain treatment etc. The electronic shifting lets you concentrate on your performance.

    The groupset contains:

    Ultegra Crankset - FC6800:

    • The HollowTech II 11-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 11-speed HG-EV 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
    • 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 interfaceensuring smooth rolling and increased durability


    Ultegra Dual Control Di2 STI Shifters - ST-6870:

    • 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
    • Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI
    • Brake lever pivot is positioned to be used with super SLR brake callipers, increase power providing excellent ergonomics when riding on the hoods
    • Finely tuneable reach adjusters for the levers enable custom fitment for all hands
    • Levers are supplied without electrical cables, as these need to be ordered separately to suit
    • For use with E-tube electric cables
    • Weight is 313 grams a pair


    Ultegra Brake Calliper Set - BR-6800:

    • Ultegra components offer an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders
    • Dual-pivot calliper brake with super SLR-EV design for quick linear response, increased rigidity and improved braking power
    • Must be used in conjunction with super SLR levers for correct leverage ratio
    • Enhanced brake arch proportions give a quicker linear response and increased power
    • Low profile outer cable stop position improves cable routing for reduced friction
    • Spring tension adjuster for precision set-up
    • Adjustable toe-in on the brake shoes for easy set up

    Ultegra Cassette - CS-6800

    • HG-EV 11-speed cassettes sprocket
    • Rider tuned wider gearing options with 11-speed
    • Available in a Junior cassette size: 14-28


    Ultegra Di2 Braze on Front Mech - FD-6870:


    • Precision actuators move cage swiftly and smoothly
    • Fast, silent and acurate front shifts every time
    • Programmed automatic trimming function
    • Support bolt creates rigid platform to move chain to the outer chainring
    • Keeps correct alignment, even when under high pedaling torque

    105 5800 11 Speed Chain - CN-HG601:

    • Super narrow lightweight 11-speed HG-EV symmetrical design chain for smooth shifts and maximum durability
    • Outer plate design has been developed to reduce the chance of chain suck
    • Sil-Tec surface treatment technology (PTFE plating) on inner links that is smooth running and increases durability
    • The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running
    • 5.62 mm chain width, optimised for 11-speed Super Narrow HG-EV drivetrains
    • Average weight 257 grams

    Ultegra Bottom Bracket - SM-BBR60:

    • Optimum power transfer
    • Hollowtech II integrated
    • English thread
    • Weight: 77g



    Ultegra Di2 Rear Mech RD-6870:

    • 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
    • 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
    • 11-32T wide gear ratio capacity will cater for compact setups as well as the traditional road double
    • 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

    Di2 Internal Battery Charger - SM-BCR2:

    • Di2 charger for the internal battery that will keep your Di2 system shifting
    • Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger
    • 1.5 hour charge time
    • Plugs in directly to the SM-EW90 handlebar junction A (Included with this groupset)
    • Can also be used for completing firmware updates when linked to E-tube software on your PC

    Shimano BT-DN110 Di2 Internal Mount Battery - BT-DN110


    • The power house of Shimano Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you
    • Excellent sealing and reliability have been proven through repeated field tests in various riding conditions, including extreme temperatures, rain, mud, and cobble stone roads
    • Using a hard wired battery system which is both light weight and accurate compared to current wireless technology (as a wireless system would require 4 batteries: one for the RD, one for the FD, and one for each shift lever)
    • The use of a single small and discreet internal battery is light weight, efficient and creates a robust and reliable system
    • One charge can give between 1000 and 2000 kilometre range depending on conditions and front mech operation (as this is the main power drain)
    • 500 times rechargeable life
    • Internal chip enables system wireless functionality of Bluetooth components
    • Battery is to be mounted with seatpost or frame/fork manufactures hardware normally inside the seatpost or seat tube/fork steerer
    • Reliable and secure water resistant E-tube terminals connection
    • Charging is done via stem junction or handlebar display
    • Battery weight is 50 grams


    Di2 Electric Wire - EW-SD50

    2 x 1400mm
    1 x 1000mm
    1 x 700mm
    2 x 350mm


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