Make dropped chains a thing of the past. With the domination of 1x drivetrains on mountain bikes, MegaTooth chainrings are an excellent solution to upgrade your bike or alter the gearing on your current ride. Using the now familiar asymmetric tooth profile, FSA have fine-tuned the technology to a point where even a secondary chain retention device is mostly unnecessary. That's because the MegaTooth design "grabs" on to the chain (but in a way that doesn't introduce any friction into the system) making it nearly impossible for the chain to come off the chainring, even at extreme chain angles and on rough terrain. This 104 BCD version is ideal for MTB applications.