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.

Check out our gear inch calculator