Collection: Cassettes

e*thirteen turned the bike world on its head with the introduction of the 9t sprocket on our original TRS cassette in 2015, and we’ve never looked back! The newest generation of e*thirteen Helix cassettes deliver more range than the competition with unmatched cross-compatibility for flawless shifting performance with SRAM™ and Shimano™ drivetrains. Lighter in weight, they also enable you to . . . Show More >