Shimano Front Chainwheel Dura Ace Di2 Cranksets Foldable design for compact storage

Foldable design for compact storage in tool box

SOLES: Carbon UD Air System // Carbon UD Speedplay®

Rail available:

19mm inner width rims

4 or aboveAdvanced Bluetooth® Smart (BLE 4

Shimano Front Chainwheel Dura Ace Di2 Cranksets Foldable design for compact storageDescription : 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