FSA (Full Speed Ahead) Gamma Pro Mega Tooth 32t, 82 BCD, For 1 x11-Speed and SRAM 12-Speed, BlackThe Gamma Pro MegaTooth's teeth are longer than standard with an asymmetric profile shape, a diamond shaped cross section, and a unique system of alternating thick then thin teeth. This allows for smooth chain engagement, meaning that the chain always remains in close contact with the chainring to give you the most reliable and positive drive possible. Thick thin tooth design for maximum chain engagement Long tooth profile enhances chain retention