Helix R Cluster (12-Speed)

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Helix R Clusters can be used to service e*thirteen Helix R cassettes. FEATURES: Designed to pair with steel cog cluster to create a 9-50t cassette Helix R 12-speed clusters are bac kward compatible with and can be used to upgrade an existing TRS+ 9-50 cassette SPECS: Material: Aluminum Cassette Body Type: SRAM XD 11/12 Speed Tooth Count: 42-50 Drivetrain Speeds: 12 Show more