Shimano Dura-Ace FC-09 Electronic Upgrade thru axle mount on a

thru axle mount on a Tacx NEO or FLUX Smart trainer

And with optional accessories like the Universal LED light for greater visibility

All-new SRAM CARBON TUNED™ crank technology provides extreme stiffness and light weight

Cut Out Yes Gender Unisex Primary Color Grey Rail Material Titanium Saddle Cover Material Fibra-Tek Saddle Dimensions 248 x 145mm Saddle Weight 190g

dirt roads

Shimano Dura-Ace FC-09 Electronic Upgrade thru axle mount on aThe choice of the world's best climbers, sprinters, and time trialists, the DURA ACE R9100 crank drops weight while maximizing power transfer. The new 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. Attributes BB Inclusion No BCD 110 Chainline 43. 5mm Crank Spindle Diameter 24mm Crankset Material Carbon Aluminum Drivetrain Spacing Road Interface