The Ultegra series 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 Ultegra 6800 series contains the following components: Brakes With new polymer-coated BC-R680 cables, new brakes give smooth, light operation with excellent modulation Greater braking power modulation Brand-new SLR with 2 axle symmetric brake caliper New Brake shoe compound (R55C4) Adjustable toe-in brake shoes Spring tension adjuster Cassette Sprocket Rider tuned wider gearing options with 11-speed Available in 11-23T, 11-25T, 12-25T and 11-28T Chain SIL-TEC coating 11-speed chain Crankset ( Bottom bracket is BSA threaded english standard ) Dura-Ace proven 4-arm design: Same stiffness and lighter weight 14g lighter weight and half the friction of the SM-BB6700, while maintaining the same durability Gearing 53x39 Front (BSA threaded english standard ) and Rear Derailleurs More equal shifting effort throughout the full range of the cassette Maintains precise shifting over an extended time period Wide link design increase rigidity and reduces shifting deflection Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available Shifter - STI Dual Control Tactile feedback to the rider that the gear shift has been completed Light action, define click engagement Vivid index shifting Short lever stroke response Powerful and controllable braking system Carbon brake lever New Ultegra Polymer-coated Shift Cable 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.

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