Shimano Dura-Ace FC-R9100 11 Speed Crankset C-class The Dura-Ace R9100 series of

The Dura-Ace R9100 series of flat mount disc brakes bring powerfully integrated brake performance to the highest rungs of road cycling

Housing the battery into the seatpost is an elegant solution and a good use of space

GXP and BB30 models

some funky looking elements and of course a few 'X's here and there

Shimano Dura-Ace FC-R9100 11 Speed Crankset C-class The Dura-Ace R9100 series ofThe choice of the world's best climbers, sprinters and time trialists, the Shimano Dura Ace FC R9100 11 Speed Crankset drops weight while maximizing power transfer. The design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options. Specifications Lengths: 165mm, 167. 5mm, 170mm, 172. 5mm, 175mm Combinations: 55 42T, 54 42T, 53 39T, 52 36T, 50 34T Chainline: 43.