Campagnolo Ekar Groupset 1 x 13 Speed Gravel Bike - 172.5mm 40T / 9/42 Cassette
The Ekar is the world's lightest gravel specific drivetrain. Campagnolo Ekar 13 Speed Chainset Carbon Gravel Bike Crankset - 172.5mm 38 Tooth. Campagnolo Ekar 13x Cassette. Campagnolo Ekar 13x Right Hand Ergo + 140mm Caliper.