ethirteen Helix Plus 12-Speed Cassette

Color: Black
Size: 9-50 T

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Engineered for e-bike durability and cross-experience compatibility with SRAM and Shimano drivetrains, this 9-50T ethirteen Helix Plus cassette is a great pick for your 12-speed mountain bike.

Location Image of color Black
Location Image of color Black


  • Allows for a 2T smaller front chainring, shorter chain length, and more clearance and range with its 9T smallest cog
  • Built for seamless compatibility with Shimano and SRAM 12-speed drivetrains, despite the challenges in designing for the different cog spacing and chain behavior
  • 2-piece design allows for replaceable aluminum cogs
  • Freehub mount for XD and XDR drivers only
  • Profile: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42 and 50 teeth; total range of 556% range
  • E*Spec uprated for e-bike use


View all ethirteen Bike Cassettes

Technical Specs

Best Use

Mountain Biking


2 aluminum cogs/10 steel cogs



Compatible Freehub



410 grams

1 reviews with an average rating of 1.0 out of 5 stars

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