Complete your dream ride with the Dura-Ace Di2 R9150 groupset. Combining classic design and engineering with cutting-edge technology, this build kit is made to world standard, setting new benchmarks in what the road, TT and CX worlds can look forward to experiencing. Wired communication between shifters and the rear derailleur enables precision gear changes for an overall cleaner and more efficient finish to your bike.
Welcome to the new frontier of cycling, you’re going to love it.
With the R9150 Di2 A soft light tough is all you need instantaneously select the correct gear. Full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio.
Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI. Programmable function of top button remote switch for third party cycle computers.
This Shimano Dura Ace FC-R9100 HOLLOWTECH II Crankset (2x11-speed) is wider than its predecessor but is still very lightweight by utilising the Hollowtech II technology. The highly rigid hollow structure cuts down on weight but still maintains strength resulting in better power transfer and more precise front shifting.
Using a carbon fiber and alloy spider and five titanium sprockets, the DURA-ACE R9100 cassette provides accurate shifting and light weight to the most discerning road cyclists on the planet.
The Shimano Dura-Ace 9100 brakes have been developed to offer greater clearance for tyres up to 28c while maintaining the aerodynamic advantage of Shimano's previous editions. Other improvements are that these calipers are now up to 43% stiffer than previous Dura-Ace brakes and offer a linear braking curve for improved feel and function. To improve aerodynamics, the quick release arm tucks in towards the main body when closed.
Hollowtech II Crankset Lengths
R9100 Dura Ace Cassette Ratios
Choose your wire combinations and Di2 extras to suit your build