Campagnolo eps record 11 speed rear mechas with the mechanical parts the rear derailleur represents the pride and joy of the eps project and encompasses a series of technologies and innovations that allow shifting speed to be optimised and guarantee unprecedented precision even in the case of multiple shifting with 11 sprockets at a time the eps rear derailleur is comprised mainly of a mechanical structure derived from the mechanical gear and composed of a derailleur rodparallelogramderaill