1x Aero Chain Guide Dura-Ace Di2 Augmented Reality Display: Patented Waveguide

Augmented Reality Display: Patented Waveguide technology with advanced machine learning and motion sensors for precise swim tracking

AA battery-powered

Shift Cable Diameter 1

BB-FRAME INTERFACE BB30 CHAINLINE n/a SPINDLE LENGTH n/a SUPPORT E-TYPE FD n/a CRANK-BB INTERFACE BB30 BEARING TYPE Standard SPINDLE DIAMETER 30mm CUP MATERIAL n/a

Compact bag

1x Aero Chain Guide Dura-Ace Di2 Augmented Reality Display: Patented WaveguideConvert your 2x crank into a 1x setup by replacing your bulky and non aero front derailleur with this slim aero optimised unit (improves airflow around the derailleur area to minimise drag and save you a few watts). Also prevents those annoying accidental shifts to the small ring when you least want them! 24mm up down adjustment (including frame bracket) Suits ROUND chainrings from 50T to 62T Suits OVAL chainrings from 50T to 58T Fits to 2 ring crank