|Posted||17 Feb 2017|
Shimano Ultegra 6800 (53-39T) include Original BB Ultegra BBR60.
Arm Lenght 172.5mm...
Top Features of the Shimano Ultegra 6800 11-Speed Double Chainset
Crank Construction:Hollowtech II
Cassette Compatibility: CS-6800
Chain Compatibility: CN-6800
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 interface ensuring smooth rolling and increased durability).
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