The transmission of your bike functions as a small organism: all the mechanisms and components its made of have to work together perfectly so that it can run silently and flawlessly during limited effort. However, when you have to perform at your best, the drivetrain will have to deal with this sudden energy peak without weakening and transform it quickly in acceleration to take advantage of the watts generated. Only a transmission in perfect shape and properly adjusted can cope with any situation you might find on your road, just like a healthy and strong organism can overcome any difficulties. Chain, cassette, shifters and any other component of the drivetrain play a key role in getting the best sensations while riding, sensations which are after all as important as the sheer performance.