XT CS-M771 10-Speed 13t 2nd Position Cog for 11-32/36T

Dura-Ace CS-R9100 11-Speed 1st position Cassette Cog

HG400 9-Speed 12t 1st Position Cog

Dura-Ace 7800/7900, Ultegra 6700/6600, 10-Speed 11T Cog

XTR M980 10-Speed 11t Cog for 11-34/36t Cassette

Dura-Ace 9000 11-Speed 13t 2nd position Cassette Cog

Ultegra CS6500 11t with Built-in Spacer

Dura-Ace CS-9000 Cassette Cog - 11-Speed, 12t, 2nd Position

Ultegra 6800 11-Speed 12t 1st position Cassette Cog

XTR M9000 11-Speed 11t cog for 11-40t Cassette

Ultegra 6800 11-Speed 11t Cassette Cog

XT CS-M8000 11-Speed 11t Cog

XT CS-M8000 11-Speed 13t Cog

XT M760 9-Speed 13T Cog

XT M760 9-Speed 11T Cog For AQ-Group

XT M771 10 speed 11t Cog for 11-34/36t Cassette

XT M771 10-Speed 11t Cog for 11-32t Cassette

XT M771 10-Speed 16t 4th position Cassette Cog for 11-32t Cassette