Full Speed Ahead Gamma Pro Mega Tooth Chainring Mega Gamma The Gamma Pro Mega Tooth's teeth are longer than standard with an asymmetric profile shape, a diamond-shaped cross-section, and a unique system of alternating thick and 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. Features Thick-thin tooth design for maximum chain engagement Long tooth profile enhances chain retention Heat-treated forged steel for maximum wear life Compatible with Gamma Pro and Alpha Drive 1x cranksets Does not fit Shimano 12-speed | Fsa | Full Speed Ahead Gamma Pro Mega Tooth Chainring 30T Aluminum 1 X 11 | Steel