Details The Campagnolo EKAR Rear Derailleur is designed for the 1×13-speed EKARndrivetrain with a gravel-orientated performance & build.- 2D parallelogram trajectory offers precise mechanical movement for 13 sprockets- High grade polymer pulley wheels (12T upper, 14T lower) allow for smooth chain running and secure retention- Carbon fiber-reinforced polyamide and anodized 7075 and 6082 alloys are lightweight, strong, and durable- Stainless steel bolts for strength and long-term resilience on gravel- Includes clutch lock for easy wheel removalSpecifications:- Largest Cog: 44- Rear Derailleur Mount Type: 10×1 Standard- Chain Wrap Capacity (teeth): 34- Cage Length: Medium- Rear Der/Shifter Compatibility: Campy EKAR- Drivetrain Speeds: 13- Weight: 275g