SRAM PG-1050 10 speed 11-36 CassetteSRAM PG 1050 Cassettes SRAM 10 and 11 speed cassettes with 11 tooth cogs have the smallest cog located behind the cassette in the packaging Forged alloy spider holds largest cogs Heat treated steel cogs Steel lockring Item Specifications Color Chrome Intended Use Mountain Cassette Spacing SRAM 10,Shimano RD 10 Cassette Body Type Shimano 9 10 SRAM Cassette Cogs 11,13,15,17,19,22,25,28,32,36 Number of Speeds 10 Chain Compatibility Shimano 10,SRAM 10