Shimano Ultegra 6800 11-Speed GroupsetShimano's Ultegra 6800 series is "pro-proven," enjoying the benefits of trickle down technology from its bigger brother, Dura Ace. The Ultegra 6800 11-Speed Groupset is infused with state-of-the-art technology and is redesigned from top to bottom. Superbly stiff, light, and responsive, this Ultegra 6800 11-Speed Groupset is a major upgrade on any racing or training Road Bike FC-6800 CranksetFeaturing a unique four-arm spider and Hollowtech II construction to put strength and apply force precisely where it's needed, the FC-6800 Crankset sets a new standard with its lightweight and stiff performance Bolt Circle Diameter: 110mmChain Line: 43 5mmUltegra FC-6800 Crankset Standard 39/53 teethCrank Arm Length: 170mm or 172 5mmNew 4-arm design for a stiff, lightweight performanceHollowtech II constructionHollowglide chainrings11-Speed CompatibleSame bolt circle diameter for compact and traditional double chainsets means that one crankarm fits all chainring sizesIncl. Hollowtech II Bottom Bracket SM-BBR60 BSA (TL-FC25 adaptor not included)Weight: 765g (with BB)Dual Control Shifters Set STI Ultegra ST-6800Now with a smaller, sleeker hood, the ergonomic Ultegra ST-6800 STI lever delivers improved comfort and performance for better rider control. The STI Ultegra ST-6800 has reduced lever stroke and lighter action *Please Note: Supplied with inner Gear cables only and does not include brake cables Material: Carbon Fibre (Brake Lever)Tactile feedback to the rider that the gear shift has been completedLight action, define click engagement, vivid index shiftingShort lever stroke responsePowerful and controllable braking systemWeight: 425g (Set)Ultegra Rear Derailleur RD-6800This Ultegra rear derailleur is updated for lighter operation with the help of new low-friction polymer-coated cables. Shifting effort is consistent across the cassette's range, with similar force required at both ends. This redesign will greatly benefit your overall experience and performance, whether in a Road Race, Sportive, or club run. Short Cage:Intended Use: RoadCassette Compatibility: CS-6800Maximum Sprocket: 28T/12TMinimum Sprocket: 23T/11TMaximum Front Difference: 16TTotal Capacity: 33TDerailleur Action: Top-Normal (Traditional)Cage Length: ShortWeight: 195gLong Cage:Intended Use: RoadCassette Compatibility: CS-6800Maximum Sprocket: 32T/12TMinimum Sprocket: 28T/11TMaximum Front Difference: 22TTotal Capacity: 41TDerailleur Action: Top-Normal (Traditional)Cage Length: LongWeight: 207gUltegra Front Derailleur FD-6800 Braze OnWith a revised actuation ratio in combination with the ST-6800 shifter and polymer-coated cables, the new Ultegra front derailleur delivers both a shorter stroke at the lever and reduced effort New designed pull arm for more direct and easy shiftingMore equal shifting effort across the rangeNew support bolt for more stable contact to the frameChainstay Angle: 61-66°Chain Line: 43 5mmMaximum Chainring: 50-56TMounting: Braze OnNote: TL-FD68 adjustment tool not includedWeight: 89gUltegra Brake Set BR-6800Long, fast descents demand confidence. These Ultegra brakes deliver to improve your nerve on fast, tight sections. With a new symmetrical dual pivot design, these Ultegra brakes have twin bearings to reduce pivot friction and improve efficiency and rider control New SLR EV Technology10% more power than BR-6700Smooth and light operation with increased modulationBrake Pad Types: R55C4Weight: 335g (Set)11-Speed Ultegra CassetteThis new Ultegra cassette is dialled-in for maximum rider performance. The new 11-speed cassettes guarantee smooth and fast shifting for complete performance and confidence Ultegra Cassette CS-6800 11-25Ultegra Cassette CS-6800 11-28Ultegra Cassette CS-6800 12-25Ultegra 11-speed Chain CN-6800 116 LinksThe new symmetrical Ultegra 11-speed chain offers increased durability at a lighter weight Ultegra redesigned SIL-TEC Chain for 11-SpeedWeight: 253gPlease note that this groupset does not come supplied with outer cables.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products) Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.