12 Speed Cassette 11 39 40 42t 46t 48 50 52t Sprocket 12v 12s Mtb Hg for sram nx 12v Flywheel Ultralight Silver Cassette

12 Speed Cassette 11 39 40 42t 46t 48 50 52t Sprocket 12v 12s Mtb Hg for sram nx 12v Flywheel Ultralight Silver Cassette

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