The Ekar is the world's lightest gravel specific drivetrain. CPB180A: Ekar 13X Rear Derailleur. CPB380A: Ekar 13X Left Ep + 140 Caliper W Oil. CPB380B: Ekar 13X Right Ep + 140 Caliper W Oil. CPB580A: Ekar 13X 09/36 Cassette.
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