I need to get my pit bike set up, but I'm missing the chainrings. All the distribs are out, apparently, and eBay had an iffy selection. The rings MUST have shift ramps. I run a double on Shimano cranks, 130bcd spacing. I have a teammate that is in a similar situation and he might also want a 175mm crankset, as well. The FSA Gossamer has lost its appeal. All 8lbs of it.