Shimano Dura Ace R9170 Di2 11 Speed Groupset

System engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimising input to maximize output. That's how it achieves supremacy. The Shimano Dura Ace R9170 Di2 11 Speed Groupset contains the following: Shimano ST-R9170 Dual Control Levers (2 x 11 Speed) More control and confidence in race conditions Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles Light weight Carbon composite plastic material of hood More intuitive, quicker shifting operation More defined click feeling and ergonomic shift lever position Customisable function to fit any riding style Each switch has the option for multi-shift ON or OFF E-TUBE project Optimum power transmitted with grip firmly Ideal ergonomic cover shape with better thickness & tenderness Openable hood cover Simple set up and maintenance Easy replace hood cover Openable hood cover Customisable the function to fit in rider's riding style Shimano RD-R9150 Rear Derailleur (11-speed) Features: Ergonomic shifting operation without stress SHIMANO synchronised shift Low profile rear derailleur design SHIMANO SHADOW RD Race endurance for less damage in crush Maintains compact and smooth appearance Specifications: Series: DURA-ACE Maximum Sprocket: 30T Minimum Sprocket: 11T Maximum Front Difference: 16T Total Capacity: 33T Average Weight: 204g Shimano FD-R9150 Front Derailleur (2x11-speed) Features: Ergonomic shifting operation without stress SHIMANO synchronised shift Race endurance for less damage in crush Quick and smooth front shifting under high pedalling torque Maintains compact and smooth appearance Specifications: Series: DURA-ACE Top Gear Teeth: 46-55T Chain Stay Angle: 61-66° Chain Line: 43.5 Shimano FC-R9100 Crankset (2x11-speed) Features: Optimum power transfer Best balance for lighter weight (-7g) and efficiency New designed crank arm Maintains high rigidity and reduces weight HOLLOWGLIDE 4-arm construction crankset Adapted for race specific disc brake system Shorter length of rear centre with O.L.D.135mm Redesign the gear teeth profile to fit wider gear pitch Rider tuned gearing options 50-34T/53-39T/54-42T/55-42T/52-36T Iconic design Crank arm length: 165, 167.5, 170, 172.5, 175, 177.5, 180mm Gear combination: 50-34T, 52-36T, 53-39T, 54-42T, 55-42T Specifications: Series: DURA-ACE Crank Construction: HOLLOWTECH II technology Crank Arm Length: 165, 167.5, 170, 172.5, 175, 177.5, 180mm Bottom Bracket: BB-R9100, BB-R9100-PB Chain Line: 43.5 Shimano Dura Ace R9120-DL Mechanical STI Set – Flat mount caliper set Precision-engineered high performance Dura-Ace hydraulic disc brake STI's give you control, modulation and power with minimal effort in all riding conditions Dura-Ace R9100 STI are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt Hydraulic brake lever provides excellent stopping power with less effort especially from the hood position Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear Shift cables routed under the bar tape using Polymer coated inner wires make for a smooth shift action, providing faster, lighter shifting Vivid Index shifting with short stroke to the release levers gives a quick and accurate shift Gear shift cables can either be routed round the front or rear of the handlebar to suit all rider preferences Ergonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changes Small volume ergonomically designed smooth lever hoods for added comfort Finely tuneable reach adjusters for the levers enable custom fitment for all hands Free stroke adjustment for pad to rotor contact setting Shimano CS-R9100 HG Cassette Sprocket (11-speed) Features: Rider tuned gearing Wider gear combination: 11-28T/12-28T/11-30T (new gear combination) Closer gear combination: 11-25T/12-25T Lightweight CFRP & Alloy spider arm, 5 titanium sprockets Gear combination: 11-25T, 11-28T, 11-30T (New gear combination), 12-25T, 12-28T Specifications: Series: DURA-ACE Average Weight: 175g (11-25T) Option 1: 11-25T/11-28T/11-30T/12-25T/12-28T Shimano CN-HG901-11 Chain Features: Smooth and reliable shifting performance with asymmetric plate design for 11-speed SIL-TEC surface treatment 11-speed compatible Specifications: Series: SHIMANO Chain Type: HG-X11 Pin Link Plate: SIL-TEC Roller Link Plate: SIL-TEC Bottom Bracket: Complete press-fit bottom bracket assembly for Shimano HollowTech II road cranks. Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage. Set includes left and right hand cups, inner cover, and inner O-rings. Sealed cups keep out dirt and water. Maintenance free. Compatible with 86.5mm shells. 41mm cup diameter. Easy press-fit installation. Please Note: All our Di2 groupsets come complete with Wiring suitable for a large frame, Stem mount junction box and Internal junction box, Battery and Charger. Our groupsets do not come with the bar end junction box