Campagnolo ekar 13 speed c link chainspecifically designed to operate seamlessly with campagnolos 1x13 speed drivetrain, the ekar chain is lightweight and offers slick shifts'. '.strtoupper('d')espite this low weight, it remains tough enough to give you the extra durability that is essential for mixed terrain rides, where you tend to change gears more often and riding through challenging conditions is unavoidable.a drivetrain, in fact, a bike, is nothing without a chain to make it all work'. '.strtoupper('a')nd in campagnolos ground up design of the 1x13 ekar drivetrain, they kept that fundamental component front and centre of their focus'. '.strtoupper('t')hey knew it had to be a vital element in operating effectively and reliably in the toughest environments gravel and all road riding can throw at you.the nickel teflon treated c13 chain is designed specifically to work efficiently and securely with a narrow wide 13 sprocket system'. '.strtoupper('d')espite being campagnolos narrowest ever chain, it's also strong, light, tough and amazingly efficient.features designed specifically for ekar 1x13 groupsets suitable for gravel and all road riding c13 gravel chain for ekar 1x13 speed drivetrains efficient secure wide narrow teeth narrow yet incredibly strong narrow profile, lightweight, strong efficient 1x13 ekar profile, designed to interface perfectly with the ekar wide narrow teeth design on the ekar chainset construction with different grades of steel coatings to create strong and durable links unique ultrasound bath lubrication impregnation system for long life efficiency includes campagnolo c link for easier maintenance part number cpb680b weight 242g 118 linksbuy campagnolo components from chain reaction cycles, the world's largest online bike store.