Origin8 Alloy Ramped Chainrings, Black/Silver Review Posted by Pelicandy November 5, 2018 in Drivetrain Components 6061-T6 alloy replacement rings 8, 9 and 10-speed compatible Black anodized with silver CNC machined teeth Ramped and pinned Made in U.S.A. Origin8 Alloy Ramped Chainrings in different size variations Random Products Shimano FC-M530 Chainring Deore Variations Review SHIMANO E-Tube Di2 Junction Port – EW-JC200 ... Shimano XTR CS-M9001 11-Speed 11-40T Mountain Bike... North Shore Billet Lapierre 12x142mm Derailleur Ha... Cycling Origin8 Outdoor Recreation Parts & Components Sports & Outdoors