We'll be adding more chainrings to this page as we get them. These are the same rings that come on our Silver cranks. The 38t is for the inner position on a 110bcd spider. All the 74bcd chainrings are steel, the rest are aluminum.
The ones on the site now aren't ramped and pinned. Some of the ones we're going to put up have both, but in our opinion they're not necessary.
Frustratingly, they don't have tooth count indicators. We plan to get those added, but that might bump the price up, maybe?