SRAM Eagle PG-1210/1230 Cassette Replacement Cogs - 11-13-15 Cogs, Lockring Included

SRAM replacement cogs allow riders to repair damaged or worn out cogs to extend the life of the cassette and provide smooth reliable shifting. For SRAM cassettes that use an 11 or 12 tooth cog in the 1st position 10sp X-Glide: aluminum construction for a 11 tooth first position cog *(also for use on XG-999 9sp cassette and replacement for discontinued PG 7-9sp / OG-1090 alloy lockrings) 10sp Open/Power-Glide: aluminum construction (1070 level), or black steel (1050 level) 9sp PowerGlide-II style: 11t red aluminum (970 DH level), silver aluminum (970 level), or black steel (950 level)