We've been getting a lot of inquiries about the ring of Saturn. In particular, folks are wondering if we have a customized inner chainring. 

The answer is no, the inner chainring is not custom made by us.  We just use the stock chainrings that come with the cranks. Here are some photos that will hopefully help clarify that.  You should be able to use most any off the shelf chainrings with the Saturn, provided they have the correct bolt circle diameter. (130 BCD or 110 BCD, depending on the CinQo)