Features: Steel Cogs with shiny weather-resistant finish Largest three cogs are attached to an aluminum spider Compatible with all 10 speed chains; use SRAM chains for optimum performance SRAM 10 and 11 speed cassettes with 11 tooth cogs have the smallest cog located behind the cassette in the packaging
Specs: Cassette Body Type Shimano/SRAM 8, 9, 10 Speed Cassette Cogs 11-12-13-14-15-17-19-21-23-25 Drivetrain Speeds 10 Range 11-25
