Shimano 105 5800 sti levers feature ergonomically designed 11 speed 105 dual control levers these levers come complete polymer coated cables and silicon greased outer casing the calipers feature dual pivot technology and are the racers choice they are compact and have a lightweight design for high performance the shimano 105 front derailleur has a wide link design for increased rigidity and improved shifting response the shimano 105 5800 rear derailleur gives awesome shifting under all co