With the Trivio inline adjusters you can adjust your derailleur tension quickly and easily even during cycling. When using derailleurs the inner cables are always a little bit stretched. As a result, the tension at the derailleur decreases and shifting is less supple. With the inline adjusters close to the handlebar, you do not have to stop but you can adjust the derailleurs as you ride. Enjoy a carefree drive without hitches or chatter. This set is mountend to threadless frame skirts.