Sweat can be detrimental to the longevity of your bicycle frame and components. Remember to always wipe down your bicycle after each ride, using a spray bottle with a mix of water and mild soap, and a rag. Especially if you are drinking GU or any other type of sports drink, the acidity of sweat and the sports drink together will eat away at your bicycle.
A combo of sweat and energy drink has stripped away the anodization on this hub.
The finish on this Ultegra derailleur has been wearing off from sweat.
