Campy 21t Final Position Cog 10-Speed

Campy Final Position Cog 10-Speed

Shimano Middle Position Cassette Cog, 10-Speed

Shimano Final Position Cog, 10-Speed

Campy Middle Position Cog - 10-Speed - 13 to 18t

Campy Middle Position Cog - 10-Speed - 19 to 27t