MTB Cassettes

Finding the right MTB cassette means balancing range, compatibility, and value. Helix cassettes changed the game with our proprietary 9T sprocket and patented two-piece construction, giving riders the freedom to build the drivetrain they actually want.

With up to 578% gear range, Helix delivers more range than SRAM or Shimano while weighing less. The best SRAM Eagle alternative and Shimano alternative for riders who refuse to be locked into one ecosystem. Drop-in compatible with SRAM®, Shimano®, and TRP® 11 and 12-speed drivetrains.

In a September 2025 review, The Loam Wolf praised the Helix Race for delivering "shorter, sharper and smoother shifting performance" where "shifting under load was significantly improved." Wideopen Magazine concluded that "you can't really go wrong" with the Helix, noting it offers a gear range "dwarfing that of SRAM and Shimano's biggest efforts." Additionally, Enduro Mountainbike Magazine confirmed the drivetrain "worked flawlessly and reliably" throughout long-term testing, highlighting its "sensible gear steps and excellent durability."

Mountain bike cassettes for trail and gravity. E-MTB cassettes with the 13-52T optimized for motor-assisted cadence. Gravel bike cassettes with the 9-45T purpose-built for drop-bar adventures. From the value-driven TRS Plus to the range-topping Helix Race 9-52T, there's a cassette for every rider and every budget.