The Shimano Ultegra 6800 Groupset is "pro-proven" as it is a direct trickle down from the Shimano Dura Ace groupset. 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.
The Shimano Ultegra 6800 11 Speed Groupset is the successor to the ever popular Shimano Ultegra 6700 10 speed groupset.The brake calipers are symmetrical dual pivot design again brought over from the 9000 Dura Ace groupset, 10% more powerful than the 6700 caliper.
The rear derailleur has a GS model to allow it to be used with the 6800 11 speed 11-32 cassette, when used with the compact chainset it gives a gear for every ride and every rider, ideal for the toughest sportives.
All in all the new Shimano Ultegra 6800 groupset offers greater performance than the 6700 groupset with the added advantage of lower weight and the extra flexibility of a 2 x 11 speed drivetrain.
With the groupset you will need a pair of 11 speed compatable wheels, you have the choice of any of the Dura Ace 9000 wheels or the new Ultegra 6800 wheels. There are also the new RS81 C24 or C50 models and a choice of training wheels like the RS61, RS31, RS21 and RS11.
; Cracnkset: FC-6800, Hollowtech II, weight: 705g ; Bottom Bracket: BBR60 BSA, Hollowtech II, weight: 90g ; STI Gear Shifer Set: ST-6800, weight: 460g (set) ; Rear Derailleur: RD-6800, short cage, weight: 210g ; Front Derailleur: FD-6800, braze-on, weight: 89g ; Brake Set: BR-6800, weight: 350g (set) ; Cassette: CS-6800, weight: 250g ; Chain: CN-6800, weight: 260g