Dura-Ace FC-R9100 Crankset Size:172.5mm Calories consumption11

Calories consumption11

Suitable for fin swimming

To be stronger

Comes with plenty of room for storing all essentials with the added bonus of a built in 16 piece tool kit

It is adjustable in length

Dura-Ace FC-R9100 Crankset Size:172.5mm Calories consumption11The choice of the world's best climbers, sprinters, and time trial aficionados, the DURA ACE R9100 crank drops weight while maximizing power transfer. The new design, and its iconic look, are adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options. 172. 5mm, 52 36T Specs Q Factor: 146mm Threaded BB shell width: 68 70mm Gear front: 2 speed Gear rear: 11 speed Construction: Hollowtech II