The Campagnolo EKAR rear derailleur is designed for the EKAR 1x13-speed drivetrain with gravel-oriented performance and construction.2D parallelogram trajectory offers precise mechanical movement for 13 sprockets.High-quality polymer pulleys (12 upper teeth, 14 lower teeth) ensure smooth chain operation.Carbon-fiber-reinforced polyamide and anodized 7075 and 6082 alloys are lightweight, strong and durable.includes a clutch lock for easy wheel removal.Chain winding capacity (teeth): 34 Cage length: mediumpatibility right rear / shifter: Campy EKAR.