Shimano 17 Dura-Ace R9100 11-Speed 175mm 34/50t Crankset alpine touring bindings it allows for venting on

it allows for venting on tough climbs

cruising around town and traveling worldwide

The elastic chest strap ensures that you get a firm fit while still allowing yourself to breathe deeply

you can adjust according to sunlight

Light cushioning

Shimano 17 Dura-Ace R9100 11-Speed 175mm 34/50t Crankset alpine touring bindings it allows for venting onThe 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.