Shimano Front Chainwheel Dura Ace Di2 Cranksets With the Panaracer line of

With the Panaracer line of tubes now available

Frame suspension

Elemental Silicon

Comfortable nylon headband provides comfortable

Rail available:

Shimano Front Chainwheel Dura Ace Di2 Cranksets With the Panaracer line ofDescription : DURA ACE HOLLOWTECH II Road Crankset 2x11 speed The DURA ACE FC 9000 crankset uses advanced HOLLOWTECH II technology and a 4 arm design to reduce weight while maintaining efficiency. An improved chain guide provides surefire shifting and decreased chain drop. It uses a 110mm pitch circle diameter and is offered in 50 34, 52 36, 52 38, 53 39, 54 42, 55 42T chainring options. It is available in 165, 167. 5, 170, 172. 5, 175, 177. 5, and