The back nine.
If your 9-speed cassette is looking a little a "shark-finned," swap it out for SRAM's PG-950 cassette for nice square teeth and renewed crisp shifting. It features PowerGlide II™ tooth profiles and shift ramps for ensuring precise, positive shift feel. Chrome-plated steel cogs are drilled to save weight, but they're tough as nails to give your 9-speed drivetrain a new lease on life.
Cog sizes: 11-12-13-15-17-19-21-23-26. Compatible with Shimano/SRAM 9-speed freehubs.
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