Shimano Ultegra Di2 6870 11 Speed 34/50 Compact Groupset - Grey External Wiring

Shimano's Ultegra series is "pro-proven" as it is a direct trickle down from their Dura Ace group. It stands for state-of-the-art technology, proven in pro races, the technology used in the new Ultegra 6800 series with 11 speed, newly designed brakes, new chain treatment etc.

Ultegra now has an 11-speed cassette with numerous gearing options to cover all situations. Leading edge design, materials and construction reduce weight, improve stiffness and enhance control.

• Crankset FC-6800 Compact 34/50 or Standard 39/53
• Bottom Bracket SM-BBR60 BSA
• STI Set ST-6870
• Rear Derailleur RD-6870 SS
• Front Derailleur FD-6870 Braze On
• Brake Set BR-6800
• Cassette CS-6800
• Chain CN-6800
• Gear Cable Set black
• Brake Cable Set black
• External wiring and Battery

Crankset ( Bottom bracket is BSA threaded english standard )

With Shimano's unique four-arm spider and Hollowtech II construction putting strength just where its needed, the FC-6800 chainset sets new standards for stiffness and low weight.

• Ultegra FC-6800 Crankset Compact 34/50 teeth
• Crank Arm Length: 170mm, 172,5mm or 175mm
• New 4-arm design for same stiffness with lighter weight
• Hollowtech II construction
• Hollowglide chainrings
• 11-speed compatible
• Same bolt circle diameter for compact and traditional double chainsets means that one crank arm fits all chainring sizes
• Bolt circle diameter: 110mm
• Chain line: 43,5mm
• Incl. Hollowtech II Bottom Bracket SM-BBR60 BSA
• Weight: 775g (with BB)

Dual Control STI Shifters

• 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 with electrical cables
• For use with E-tube electric cables
• Comes complete with SLR brake cable set
• Weight: 313g a pair

Ultegra Rear Derailleur

• 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

Ultegra Front Derailleur (BSA threaded english standard)

• The Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to a microchip communication link with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur
• The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chainrings is, even under load
• The difference in the effort and time to actuate the shift between mechanical and Di2 is truly staggering
• 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
• Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available
• 11-speed E-tube Di2 compatible
• Weight: 162g

Ultegra Brake Set BR-6800

Long, fast descents demand confidence. Ultegra brakes deliver, with a new symmetrical dual pivot design and twin bearings reducing pivot friction and improving efficiency and controllability.

• New SLR EV Technology
• 10% more power than BR-6700
• Smooth and light operation with increased modulation
• Brake Pad Types:  R55C4
• Weight: 335g (Set)

Cassette

Rider-tuned means Ultegra works the way you want it. The new 11-speed cassettes are available in a range of sizes including a wide-range 11-28 option - one cassette to use all year round. Smooth, fast shifting guaranteed. Weight is 212g (11-23T).

• Ultegra 11-speed Chain CN-6800
• The new symmetrical Ultegra 11-speed chain offers low weight and high durability
• Ultegra redesigned SIL-TEC Chain for 11-Speed
• Weight: 253g

Contents:

• 1 x STI levers
• 1 x Rear Derailleur
• 1 x Front Derailleur
• 1 x Front Brake Caliper
• 1 x Rear Brake Caliper
• 1 x Chainset
• 1 x BSA Bottom Bracket
• 1 x Chain
• 1 x SMEW90A Junction Box A
• 1 x SMJC40 Junction Box B
• 6 x EW-SD50 Cable
• 1 x External Battery
• 1 x Battery Holder
• 1 x Battery Charger

Can’t find the spec you want? Contact our Customer Services team and we will do our best to source the exact spec you would like.