To be used as the largest road chainring on a double crankset.
Absolute highest quality from Shimanos best road group set - Dura-Ace
Low weight and a sublime gear shift is what the Dura-Ace group set is known for.
The chainring is of the MC-type, making it work best with other chainrings of the MC-type.
52 teeth chainring, that can be used with a smaller chainring down to 36 teeth.