The Shimano Ultegra 6800 11 speed groupset is the successor to the ever popular Shimano Ultegra 6700 10 speed groupset. There's a lot more to the new groupset that an extra sprocket on the rear cassette. Featuring many of the performance features of the Dura Ace 9000 groupset the 6800 makes it more accessible to enjoy all of Shimanos latest inovations.
The new Ultegra 6800 groupsets features a redesigned 4 arm chainset that allows 34/50 and 39/53 rings combinations to be used on the same spider, we will also see the 36/52 ratio as seen on the Dura Ace chainset. The brake calipers are symmetrical dual pivot design again brought over from the 900 Dura Ace groupset, 10% more powerful than the 6700 caliper.
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 compatible wheels,.
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