Shimano Dura-Ace 9000 11 Speed Groupset Dura-Ace moves to the next generation. Reduced shifting effort lets you concentrate on riding. More control thanks to improved ergonomics. Unbeatable reliability gives you confidence. Dura-Ace: Concentration, control and confidence. Dura-Ace now has an 11-speed cassette with numerous gearing options to cover all situations. Leading edge design, materials and construction reduce weight, improve stiffness and enhance control. Crankset: With a unique four-arm spider and Hollowtech II construction putting strength just where its needed, the FC-9000 chainset sets new standards for stiffness and low weight.Dura Ace FC-9000 Crankset Compact 34/50 teeth Crank Arm Length: 172.5mm New 4-arm design for same stiffness with lighter weight Hollowtech II construction Hollowglide chainrings 11-speed compatible Same bolt circle diameter for compact and traditional double chainsets means that one crankarm fits all chainring sizes Bolt circle diameter: 110mm Chain line: 43,5mm Includes Hollowtech II Bottom Bracket SM-BB9000 BSA Weight: 683g (with BB)Dual Control Shifters Set STI Dura Ace ST-9000: With smaller, sleeker hoods, the 11-speed compatible ST-9000 STI units deliver improved ergonomics for better rider comfort and control, with reduced lever stroke and lighter action.Smaller hoods improve ergonomics from all positions Release lever stroke reduced by 30% compared to ST-7900 Polymer-coated cables for the smoothest shifting Shifting effort up to 47% lower than RD-7900 43% less effort at the end of the lever stroke than FD-7900 Weight: 365g (Set)Dura Ace Rear Derailleur RD-9000 SS: The 11-speed Dura-Ace rear derailleur has been redesigned for lighter operation with the help of new low-friction polymer-coated cables. Shifting effort is now more even across the range, with similar force required at both ends of the cassette.Fast and accurate shifting 11-speed design Maximum sprocket 28T More equal shifting effort through the range Weight: 158g Dura Ace Front Derailleur FD-9000 Braze On: With a revised actuation ratio in combination with the ST-9000 shifter and polymer-coated cables, the new Dura-Ace front derailleur delivers both a shorter stroke at the lever and reduced effort.New designed pull arm for more direct and easy shifting More equal shifting effort across the range New support bolt for more stable contact to the frame Chainstay angle: 61-66 degrees Max. chainring: 50-56 teeth Chain line: 43,5 mm Mounting: Braze On Weight: 66g Dura Ace Brake Set BR-9000: Long, fast descents demand confidence. Dura-Ace brakes deliver, with a new symmetrical dual pivot design and twin bearings reducing pivot friction and improving efficiency and controllability.New SLR EV Technology 10% more power than BR-7900 Smooth and light operation with increased modulation Brake Pad Types: R55C4 Weight: 297g (Set)Cassette: Rider-tuned means Dura-Ace works the way you want it. Smooth, fast shifting guaranteed. Dura Ace Cassette CS-9000 11-28t Dura Ace 11-speed Chain CN-9000 114 Links: The new symmetrical 11-speed Dura-Ace chain uses hollow pins for low weight, PTFE coating for smooth shifts and offers increased durability.PTFE coating Increased durability (vs. CN-7900) Weight: 243g Please note that this groupset does not come supplied with outer cables.