Description | SRAM XG-999 9-Speed MTB CassetteAn amazingly strong and lightweight mountain cassette that shares the revolutionary machined design of the SRAM XG mountain cassette and the PowerDome road cassette.
- Open design aids in mud clearance, giving you cleaner shifting performance and longer component life
- Seven of the cogs are CNC-machined together out of a single block of billet steel, creating an incredibly lightweight, strong and precise-shifting cassette
- SRAM XG cassette is 100g lighter than the SRAM PG-990 cassette
- 4041 chromoly steel cog material is exceptionally hard, promising exceptional durability
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