Lightweight, semi-spidered construction with durable, blast/heat-treated steel cogs and weight reduction ports (three largest cogs on spider). PowerGlide tooth profiling designed for optimal shifting performance . Fits 8/9/10sp* SRAM/Shimano-spline freehub bodies for 10-speed shifting/spacing *(does not fit DuraAce 10sp aluminum freehub bodies). Includes silver-anodized 7000-series aluminum lockring
- 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