Convert 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!
Checkout the video under the ‘Video’ section below to see just how well it runs on oval rings.