This FSA mountain bike chainring benefits from FSA's " Mega Tooth" technology. With this 1x gearing design, as there’s no need to derail the chain onto another ring the Mega Tooth can be designed for fantastic chain security. Very long, asymmetric teeth in a thick-thin alternation create a tremendously quiet, secure engagement. On a mountain bike, this creates further weight savings, as it also removes the need for a heavy chain device.