eThirteen Helix Race 12-Speed Cassette, 9-50
$329.00
MORE RANGE, LESS WEIGHT The HELIX R 12 Speed Cassette is an upgrade to any SRAM™ Eagle or Shimano™ drivetrain, with more range than any other cassette on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain.
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