Chainring - 110 x 36t - 12013
Made in the USA by Origin8/Vuelta aluminum chainrings.
Middle ring 110 mm bcd (bolt circle diameter) x 36t.All are silver with no ramps or weird shaped teeth or pins. Absolutely nothing fancy about these rings, and that's a good thing. Can be used as a middle or big ring. Plain and simple looking rings at good prices.
Here's a neato tool to keep that chainring nut from spinning round and round.